-9(a+12)=45

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Solution for -9(a+12)=45 equation:


Simplifying
-9(a + 12) = 45

Reorder the terms:
-9(12 + a) = 45
(12 * -9 + a * -9) = 45
(-108 + -9a) = 45

Solving
-108 + -9a = 45

Solving for variable 'a'.

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

Add '108' to each side of the equation.
-108 + 108 + -9a = 45 + 108

Combine like terms: -108 + 108 = 0
0 + -9a = 45 + 108
-9a = 45 + 108

Combine like terms: 45 + 108 = 153
-9a = 153

Divide each side by '-9'.
a = -17

Simplifying
a = -17

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