5(a+4)=90

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Solution for 5(a+4)=90 equation: 


Simplifying
5(a + 4) = 90

Reorder the terms:
5(4 + a) = 90
(4 * 5 + a * 5) = 90
(20 + 5a) = 90

Solving
20 + 5a = 90

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 + 5a = 90 + -20

Combine like terms: 20 + -20 = 0
0 + 5a = 90 + -20
5a = 90 + -20

Combine like terms: 90 + -20 = 70
5a = 70

Divide each side by '5'.
a = 14

Simplifying
a = 14

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