maximintrachgrf maximintrachgrf

21-11-2017
Mathematics

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

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texaschic101 texaschic101

21-11-2017

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

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devynmelavasox967g devynmelavasox967g

21-11-2017

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

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