4(a+20)=

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Solution for 4(a+20)= equation: 


Simplifying
4(a + 20) = 0

Reorder the terms:
4(20 + a) = 0
(20 * 4 + a * 4) = 0
(80 + 4a) = 0

Solving
80 + 4a = 0

Solving for variable 'a'.

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

Add '-80' to each side of the equation.
80 + -80 + 4a = 0 + -80

Combine like terms: 80 + -80 = 0
0 + 4a = 0 + -80
4a = 0 + -80

Combine like terms: 0 + -80 = -80
4a = -80

Divide each side by '4'.
a = -20

Simplifying
a = -20

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