-3(a-4)-2a-12=15

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Solution for -3(a-4)-2a-12=15 equation:


Simplifying
-3(a + -4) + -2a + -12 = 15

Reorder the terms:
-3(-4 + a) + -2a + -12 = 15
(-4 * -3 + a * -3) + -2a + -12 = 15
(12 + -3a) + -2a + -12 = 15

Reorder the terms:
12 + -12 + -3a + -2a = 15

Combine like terms: 12 + -12 = 0
0 + -3a + -2a = 15
-3a + -2a = 15

Combine like terms: -3a + -2a = -5a
-5a = 15

Solving
-5a = 15

Solving for variable 'a'.

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

Divide each side by '-5'.
a = -3

Simplifying
a = -3

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