-3-a=4a+12

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Solution for -3-a=4a+12 equation:


Simplifying
-3 + -1a = 4a + 12

Reorder the terms:
-3 + -1a = 12 + 4a

Solving
-3 + -1a = 12 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-3 + -1a + -4a = 12 + 4a + -4a

Combine like terms: -1a + -4a = -5a
-3 + -5a = 12 + 4a + -4a

Combine like terms: 4a + -4a = 0
-3 + -5a = 12 + 0
-3 + -5a = 12

Add '3' to each side of the equation.
-3 + 3 + -5a = 12 + 3

Combine like terms: -3 + 3 = 0
0 + -5a = 12 + 3
-5a = 12 + 3

Combine like terms: 12 + 3 = 15
-5a = 15

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

Simplifying
a = -3

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