-12=3-4a

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Solution for -12=3-4a equation:


Simplifying
-12 = 3 + -4a

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

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

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

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

Combine like terms: 3 + 12 = 15
4a = 15

Divide each side by '4'.
a = 3.75

Simplifying
a = 3.75

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