-12-7a=-5(a+4)

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Solution for -12-7a=-5(a+4) equation:


Simplifying
-12 + -7a = -5(a + 4)

Reorder the terms:
-12 + -7a = -5(4 + a)
-12 + -7a = (4 * -5 + a * -5)
-12 + -7a = (-20 + -5a)

Solving
-12 + -7a = -20 + -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
-12 + -7a + 5a = -20 + -5a + 5a

Combine like terms: -7a + 5a = -2a
-12 + -2a = -20 + -5a + 5a

Combine like terms: -5a + 5a = 0
-12 + -2a = -20 + 0
-12 + -2a = -20

Add '12' to each side of the equation.
-12 + 12 + -2a = -20 + 12

Combine like terms: -12 + 12 = 0
0 + -2a = -20 + 12
-2a = -20 + 12

Combine like terms: -20 + 12 = -8
-2a = -8

Divide each side by '-2'.
a = 4

Simplifying
a = 4

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