Solve 4a + 23 - 9a - 17 =21 . Show work

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asked Nov 27, 2018 72.3k views

1 vote

Solve 4a + 23 - 9a - 17 =21 . Show work

Mathematics
middle-school

Comma asked

by Comma

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2 Answers

1 vote

A=3
First you would collect the like terms
-5a+21-6
Move constant to the right
-5a=21-6
Subtract the numbers
-5a=15
Divide both sides by -5 and there ya go

Jolinda answered Nov 28, 2018

by Jolinda

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4 votes

4a + 23 -9a - 17 = 21....simplify
-5a + 6 = 21
-5a = 21 - 6
-5a = 15
a = -15/5
a = -3 <==

Martin Maat answered Dec 2, 2018

by Martin Maat

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