3(a+15)=9

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Solution for 3(a+15)=9 equation: 


Simplifying
3(a + 15) = 9

Reorder the terms:
3(15 + a) = 9
(15 * 3 + a * 3) = 9
(45 + 3a) = 9

Solving
45 + 3a = 9

Solving for variable 'a'.

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

Add '-45' to each side of the equation.
45 + -45 + 3a = 9 + -45

Combine like terms: 45 + -45 = 0
0 + 3a = 9 + -45
3a = 9 + -45

Combine like terms: 9 + -45 = -36
3a = -36

Divide each side by '3'.
a = -12

Simplifying
a = -12

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