4(-4-5a)=84

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Solution for 4(-4-5a)=84 equation: 


Simplifying
4(-4 + -5a) = 84
(-4 * 4 + -5a * 4) = 84
(-16 + -20a) = 84

Solving
-16 + -20a = 84

Solving for variable 'a'.

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

Add '16' to each side of the equation.
-16 + 16 + -20a = 84 + 16

Combine like terms: -16 + 16 = 0
0 + -20a = 84 + 16
-20a = 84 + 16

Combine like terms: 84 + 16 = 100
-20a = 100

Divide each side by '-20'.
a = -5

Simplifying
a = -5

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