-3(a-4)=15

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


Simplifying
-3(a + -4) = 15

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

Solving
12 + -3a = 15

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + -3a = 15 + -12

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

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

Divide each side by '-3'.
a = -1

Simplifying
a = -1

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