a+2a-3=39

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Solution for a+2a-3=39 equation: 


Simplifying
a + 2a + -3 = 39

Reorder the terms:
-3 + a + 2a = 39

Combine like terms: a + 2a = 3a
-3 + 3a = 39

Solving
-3 + 3a = 39

Solving for variable 'a'.

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

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

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

Combine like terms: 39 + 3 = 42
3a = 42

Divide each side by '3'.
a = 14

Simplifying
a = 14

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