Question
upstudy study bank question image url

\( \begin{array}{ll}\text { 30) } \frac{2(x+1)}{3}-\frac{1-x}{5}=x+\frac{3}{10} & \text { Sol: } x=\frac{5}{4} \\ \begin{array}{ll}\text { 31) } \frac{x-1}{2}-\frac{x+1}{3}=1 & \text { Sol: } x=11 \\ \text { 32) } \frac{3 x-2}{5}-\frac{2 x-1}{3}=\frac{5 x-7}{15} & \text { Sol: } x=1 \\ \begin{array}{ll}\text { 33) } \frac{3 \cdot(x+1)}{4}-\frac{x+3}{6}+x=2 x+\frac{3-7 x}{12} & \text { Sol: } x=0 \\ \text { 34) } \frac{x-3}{3}-\frac{3 \cdot(x-2)}{2}=\frac{x-3-(x+2)}{2} & \text { Sol: } x=\frac{27}{7} \\ \text { 35) } \frac{2(x-2)}{3}+\frac{3 x+1}{3}=\frac{2 x-5}{12} & \text { Sol: } x=\frac{7}{18} \\ \text { 36) } \frac{3(x-2)}{4}-\frac{2(x-3)}{3}=\frac{x}{6}-\frac{3 x-6}{4} & \text { Sol: } x=\frac{3}{2} \\ \text { 37) } \frac{2(x+2)}{3}+\frac{3(x-3)}{6}-\frac{8(x-1)}{9}=1 & \text { Sol: } x=1\end{array}\end{array} \text { }\end{array} \)

Ask by Mccoy Burns. in Spain
Mar 02,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

Aquí están las soluciones a las ecuaciones: 1) \( x = \frac{5}{4} \) 2) \( x = 11 \) 3) \( x = 1 \) 4) \( x = 0 \) 5) \( x = \frac{27}{7} \) 6) \( x = \frac{7}{18} \) 7) \( x = \frac{3}{2} \) 8) \( x = 1 \)

Solution

A continuación se muestra cada ecuación con su solución (y, opcionalmente, una breve explicación de cómo comprobar que la solución es correcta): 1) (30) [2(x + 1)]/3 – (1 – x)/5 = x + 3/10   Solución: x = 5/4   • Para comprobarla se puede multiplicar la ecuación por 30 (mínimo común denominador) y simplificar, obteniéndose finalmente 4x = 5. 2) (31) (x – 1)/2 – (x + 1)/3 = 1   Solución: x = 11   • Multiplicando ambos lados por 6 se reduce la ecuación a: 3(x – 1) – 2(x + 1) = 6, lo que conduce a x = 11. 3) (32) (3x – 2)/5 – (2x – 1)/3 = (5x – 7)/15   Solución: x = 1   • Tras multiplicar ambos lados por 15 se llega a: 3(3x – 2) – 5(2x – 1) = 5x – 7, y al resolver se obtiene x = 1. 4) (33) [3(x + 1)]/4 – (x + 3)/6 + x = 2x + (3 – 7x)/12   Solución: x = 0   • Multiplicando por 12 (el común denominador) y simplificando se verifica que la igualdad conduce a 19x + 3 = 17x + 3, es decir, 2x = 0. 5) (34) (x – 3)/3 – [3(x – 2)]/2 = [x – 3 – (x + 2)]/2   Solución: x = 27/7   • Tras simplificar ambas partes y multiplicar por el mínimo común denominador, se obtiene una ecuación lineal que conduce a x = 27/7. 6) (35) [2(x – 2)]/3 + (3x + 1)/3 = (2x – 5)/12   Solución: x = 7/18   • Se combinan los términos del lado izquierdo, se multiplican por 12 y se resuelve la ecuación lineal, obteniéndose x = 7/18. 7) (36) [3(x – 2)]/4 – [2(x – 3)]/3 = x/6 – [3x – 6]/4   Solución: x = 3/2   • Al multiplicar ambos lados por 12 se consigue despejar x y se obtiene x = 3/2. 8) (37) [2(x + 2)]/3 + [3(x – 3)]/6 – [8(x – 1)]/9 = 1   Solución: x = 1   • Convirtiendo todas las fracciones a un común denominador (por ejemplo, 18) y simplificando se llega a la ecuación (5x + 13)/18 = 1, que resuelta da x = 1. Cada solución ha sido comprobada mediante operaciones algebraicas estándar que incluyen multiplicar por el mínimo común denominador, simplificar y finalmente despejar la incógnita x.

Answered by UpStudy AI and reviewed by a Professional Tutor

error msg
Explain
Simplify this solution

The Deep Dive

Did you know that solving equations like these has roots going back to ancient civilizations? The Babylonians were some of the first to develop methods for solving linear equations around 2000 BCE, using geometrical approaches. Fast forward to today, and we have algebraic notation and techniques that streamline the process, making math both more efficient and accessible! In real-world application, understanding how to solve equations helps you tackle everyday problems. Whether you're calculating the budget for a party, determining the time it takes to travel a distance, or adjusting recipes, the principles of algebra are essential. Grasping these concepts not only boosts your problem-solving skills but also enhances logical thinking—skills that are invaluable in both academic and practical scenarios!

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy