-12+3(a+5)-a=-3

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Solution for -12+3(a+5)-a=-3 equation:


Simplifying
-12 + 3(a + 5) + -1a = -3

Reorder the terms:
-12 + 3(5 + a) + -1a = -3
-12 + (5 * 3 + a * 3) + -1a = -3
-12 + (15 + 3a) + -1a = -3

Combine like terms: -12 + 15 = 3
3 + 3a + -1a = -3

Combine like terms: 3a + -1a = 2a
3 + 2a = -3

Solving
3 + 2a = -3

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + 2a = -3 + -3

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

Combine like terms: -3 + -3 = -6
2a = -6

Divide each side by '2'.
a = -3

Simplifying
a = -3

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