-8(a+9)=72

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Solution for -8(a+9)=72 equation:


Simplifying
-8(a + 9) = 72

Reorder the terms:
-8(9 + a) = 72
(9 * -8 + a * -8) = 72
(-72 + -8a) = 72

Solving
-72 + -8a = 72

Solving for variable 'a'.

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

Add '72' to each side of the equation.
-72 + 72 + -8a = 72 + 72

Combine like terms: -72 + 72 = 0
0 + -8a = 72 + 72
-8a = 72 + 72

Combine like terms: 72 + 72 = 144
-8a = 144

Divide each side by '-8'.
a = -18

Simplifying
a = -18

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