-4(1+3a)=-76

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Solution for -4(1+3a)=-76 equation: 


Simplifying
-4(1 + 3a) = -76
(1 * -4 + 3a * -4) = -76
(-4 + -12a) = -76

Solving
-4 + -12a = -76

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 4 + -12a = -76 + 4

Combine like terms: -4 + 4 = 0
0 + -12a = -76 + 4
-12a = -76 + 4

Combine like terms: -76 + 4 = -72
-12a = -72

Divide each side by '-12'.
a = 6

Simplifying
a = 6

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