-4(a-2)=-20

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Solution for -4(a-2)=-20 equation: 


Simplifying
-4(a + -2) = -20

Reorder the terms:
-4(-2 + a) = -20
(-2 * -4 + a * -4) = -20
(8 + -4a) = -20

Solving
8 + -4a = -20

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + -8 + -4a = -20 + -8

Combine like terms: 8 + -8 = 0
0 + -4a = -20 + -8
-4a = -20 + -8

Combine like terms: -20 + -8 = -28
-4a = -28

Divide each side by '-4'.
a = 7

Simplifying
a = 7

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