4(5+a)=0

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Solution for 4(5+a)=0 equation: 


Simplifying
4(5 + a) = 0
(5 * 4 + a * 4) = 0
(20 + 4a) = 0

Solving
20 + 4a = 0

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 = 0 + -20

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

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

Divide each side by '4'.
a = -5

Simplifying
a = -5

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