5(1+4a)=-20

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Solution for 5(1+4a)=-20 equation: 


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

Solving
5 + 20a = -20

Solving for variable 'a'.

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

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

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

Combine like terms: -20 + -5 = -25
20a = -25

Divide each side by '20'.
a = -1.25

Simplifying
a = -1.25

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