3(a-9)=15

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


Simplifying
3(a + -9) = 15

Reorder the terms:
3(-9 + a) = 15
(-9 * 3 + a * 3) = 15
(-27 + 3a) = 15

Solving
-27 + 3a = 15

Solving for variable 'a'.

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

Add '27' to each side of the equation.
-27 + 27 + 3a = 15 + 27

Combine like terms: -27 + 27 = 0
0 + 3a = 15 + 27
3a = 15 + 27

Combine like terms: 15 + 27 = 42
3a = 42

Divide each side by '3'.
a = 14

Simplifying
a = 14

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