-a+4-7a=-12

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Solution for -a+4-7a=-12 equation:


Simplifying
-1a + 4 + -7a = -12

Reorder the terms:
4 + -1a + -7a = -12

Combine like terms: -1a + -7a = -8a
4 + -8a = -12

Solving
4 + -8a = -12

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 + -8a = -12 + -4

Combine like terms: 4 + -4 = 0
0 + -8a = -12 + -4
-8a = -12 + -4

Combine like terms: -12 + -4 = -16
-8a = -16

Divide each side by '-8'.
a = 2

Simplifying
a = 2

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