-a+15=2a

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Solution for -a+15=2a equation:


Simplifying
-1a + 15 = 2a

Reorder the terms:
15 + -1a = 2a

Solving
15 + -1a = 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
15 + -1a + -2a = 2a + -2a

Combine like terms: -1a + -2a = -3a
15 + -3a = 2a + -2a

Combine like terms: 2a + -2a = 0
15 + -3a = 0

Add '-15' to each side of the equation.
15 + -15 + -3a = 0 + -15

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

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

Divide each side by '-3'.
a = 5

Simplifying
a = 5

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