Answer
$x+45$
Work Step by Step
Use the order of operations (PEMDAS) to solve this problem. Start with parentheses, and then do multiplication. Finish with addition and subtraction.
$7x+3[9-(2x-6)]$
$7x+3[9-2x+6]$
$7x+3[15-2x]$
$7x+45-6x$
$x+45$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Prerequisites: Fundamental Concepts of Algebra - Mid-Chapter Check Point - Page 63: 5
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