Question
9:47PM Thu Feb 20 Emilio Mejia Felici... R. 4 Evaluate linear expressions Video 05:26 V Evaluate the expression for \( u=3 \). \[ 62-17 u= \] \( \square \) Submit Not ready yet?
Ask by Johnston Floyd. in Puerto Rico
Feb 21,2025
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Answer
When \( u=3 \), the expression \( 62-17u \) equals 11.
Solution
Substitute \( u=3 \) into the expression \( 62-17u \).
Evaluate the expression by following steps:
- step0: Evaluate:
\(62-17u\)
- step1: Substitute:
\(62-17\times 3\)
- step2: Multiply the numbers:
\(62-51\)
- step3: Subtract the numbers:
\(11\)
When \( u=3 \), the expression \( 62-17u \) evaluates to 11.
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Simplify this solution Bonus Knowledge
To evaluate the expression \( 62 - 17u \) for \( u = 3 \), simply substitute 3 in place of \( u \). So, you would calculate \( 62 - 17(3) \), which equals \( 62 - 51 = 11 \). It’s essential to follow the order of operations: first, handle the multiplication \( 17(3) \) before moving on to the subtraction. A common mistake is to forget this and incorrectly perform the addition first, leading to an erroneous result. Stay vigilant!
