9(a+9)=

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Solution for 9(a+9)= equation: 


Simplifying
9(a + 9) = 0

Reorder the terms:
9(9 + a) = 0
(9 * 9 + a * 9) = 0
(81 + 9a) = 0

Solving
81 + 9a = 0

Solving for variable 'a'.

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

Add '-81' to each side of the equation.
81 + -81 + 9a = 0 + -81

Combine like terms: 81 + -81 = 0
0 + 9a = 0 + -81
9a = 0 + -81

Combine like terms: 0 + -81 = -81
9a = -81

Divide each side by '9'.
a = -9

Simplifying
a = -9

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