4(5-a)=-4

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Solution for 4(5-a)=-4 equation:


Simplifying
4(5 + -1a) = -4
(5 * 4 + -1a * 4) = -4
(20 + -4a) = -4

Solving
20 + -4a = -4

Solving for variable 'a'.

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

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

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

Combine like terms: -4 + -20 = -24
-4a = -24

Divide each side by '-4'.
a = 6

Simplifying
a = 6

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