2a+15=13

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Solution for 2a+15=13 equation: 


Simplifying
2a + 15 = 13

Reorder the terms:
15 + 2a = 13

Solving
15 + 2a = 13

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 + 2a = 13 + -15

Combine like terms: 15 + -15 = 0
0 + 2a = 13 + -15
2a = 13 + -15

Combine like terms: 13 + -15 = -2
2a = -2

Divide each side by '2'.
a = -1

Simplifying
a = -1

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