-12(a-12)=-9(1+7a)

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Solution for -12(a-12)=-9(1+7a) equation:


Simplifying
-12(a + -12) = -9(1 + 7a)

Reorder the terms:
-12(-12 + a) = -9(1 + 7a)
(-12 * -12 + a * -12) = -9(1 + 7a)
(144 + -12a) = -9(1 + 7a)
144 + -12a = (1 * -9 + 7a * -9)
144 + -12a = (-9 + -63a)

Solving
144 + -12a = -9 + -63a

Solving for variable 'a'.

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

Add '63a' to each side of the equation.
144 + -12a + 63a = -9 + -63a + 63a

Combine like terms: -12a + 63a = 51a
144 + 51a = -9 + -63a + 63a

Combine like terms: -63a + 63a = 0
144 + 51a = -9 + 0
144 + 51a = -9

Add '-144' to each side of the equation.
144 + -144 + 51a = -9 + -144

Combine like terms: 144 + -144 = 0
0 + 51a = -9 + -144
51a = -9 + -144

Combine like terms: -9 + -144 = -153
51a = -153

Divide each side by '51'.
a = -3

Simplifying
a = -3

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