-8-15-4a=9

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Solution for -8-15-4a=9 equation: 


Simplifying
-8 + -15 + -4a = 9

Combine like terms: -8 + -15 = -23
-23 + -4a = 9

Solving
-23 + -4a = 9

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '23' to each side of the equation.
-23 + 23 + -4a = 9 + 23

Combine like terms: -23 + 23 = 0
0 + -4a = 9 + 23
-4a = 9 + 23

Combine like terms: 9 + 23 = 32
-4a = 32

Divide each side by '-4'.
a = -8

Simplifying
a = -8

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