-7(-12+a)=231

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Solution for -7(-12+a)=231 equation: 


Simplifying
-7(-12 + a) = 231
(-12 * -7 + a * -7) = 231
(84 + -7a) = 231

Solving
84 + -7a = 231

Solving for variable 'a'.

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

Add '-84' to each side of the equation.
84 + -84 + -7a = 231 + -84

Combine like terms: 84 + -84 = 0
0 + -7a = 231 + -84
-7a = 231 + -84

Combine like terms: 231 + -84 = 147
-7a = 147

Divide each side by '-7'.
a = -21

Simplifying
a = -21

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