5(5+a)=89

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Solution for 5(5+a)=89 equation: 


Simplifying
5(5 + a) = 89
(5 * 5 + a * 5) = 89
(25 + 5a) = 89

Solving
25 + 5a = 89

Solving for variable 'a'.

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

Add '-25' to each side of the equation.
25 + -25 + 5a = 89 + -25

Combine like terms: 25 + -25 = 0
0 + 5a = 89 + -25
5a = 89 + -25

Combine like terms: 89 + -25 = 64
5a = 64

Divide each side by '5'.
a = 12.8

Simplifying
a = 12.8

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