Question
upstudy study bank question image url

52. \( \left\{\begin{aligned} 2 x+3 y & =4 \\ -x+2 y & =-2\end{aligned}\right. \)

Ask by Fowler Curry. in the United States
Feb 25,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

\( x = 2 \) and \( y = 0 \).

Solution

Solve the system of equations \( 2x+3y=4;-x+2y=-2 \). Solve the system of equations by following steps: - step0: Solve using the substitution method: \(\left\{ \begin{array}{l}2x+3y=4\\-x+2y=-2\end{array}\right.\) - step1: Solve the equation: \(\left\{ \begin{array}{l}2x+3y=4\\x=2+2y\end{array}\right.\) - step2: Substitute the value of \(x:\) \(2\left(2+2y\right)+3y=4\) - step3: Simplify: \(4+7y=4\) - step4: Move the constant to the right side: \(7y=4-4\) - step5: Subtract the terms: \(7y=0\) - step6: Rewrite the expression: \(y=0\) - step7: Substitute the value of \(y:\) \(x=2+2\times 0\) - step8: Substitute back: \(x=2\) - step9: Calculate: \(\left\{ \begin{array}{l}x=2\\y=0\end{array}\right.\) - step10: Check the solution: \(\left\{ \begin{array}{l}x=2\\y=0\end{array}\right.\) - step11: Rewrite: \(\left(x,y\right) = \left(2,0\right)\) The solution to the system of equations is \( x = 2 \) and \( y = 0 \).

Answered by UpStudy AI and reviewed by a Professional Tutor

error msg
Explain
Simplify this solution

Bonus Knowledge

To solve the system of equations \[ \begin{aligned} 2 x + 3 y & = 4 \quad (1) \\ -x + 2 y & = -2 \quad (2) \end{aligned} \] we can use substitution or elimination. Here’s a fun approach with elimination: First, let's multiply equation (2) by 2 to align the coefficients of \( x \): \[ \begin{aligned} -2x + 4y & = -4 \quad (3) \\ 2x + 3y & = 4 \quad (1) \end{aligned} \] Now, we can add equations (1) and (3): \[ (2x + 3y) + (-2x + 4y) = 4 + (-4) \] This simplifies to: \[ 7y = 0 \Rightarrow y = 0 \] Now substitute \( y = 0 \) back into equation (1): \[ 2x + 3(0) = 4 \Rightarrow 2x = 4 \Rightarrow x = 2 \] Thus, the solution to the system is \( (x, y) = (2, 0) \). Fun fact: Just like in teamwork, if we work together efficiently (combined strategies), we can solve the problem much quicker!

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