3a+15=39

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Solution for 3a+15=39 equation: 


Simplifying
3a + 15 = 39

Reorder the terms:
15 + 3a = 39

Solving
15 + 3a = 39

Solving for variable 'a'.

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

Add '-15' to each side of the equation.
15 + -15 + 3a = 39 + -15

Combine like terms: 15 + -15 = 0
0 + 3a = 39 + -15
3a = 39 + -15

Combine like terms: 39 + -15 = 24
3a = 24

Divide each side by '3'.
a = 8

Simplifying
a = 8

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