-9=2a+15

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Solution for -9=2a+15 equation:


Simplifying
-9 = 2a + 15

Reorder the terms:
-9 = 15 + 2a

Solving
-9 = 15 + 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.
-9 + -2a = 15 + 2a + -2a

Combine like terms: 2a + -2a = 0
-9 + -2a = 15 + 0
-9 + -2a = 15

Add '9' to each side of the equation.
-9 + 9 + -2a = 15 + 9

Combine like terms: -9 + 9 = 0
0 + -2a = 15 + 9
-2a = 15 + 9

Combine like terms: 15 + 9 = 24
-2a = 24

Divide each side by '-2'.
a = -12

Simplifying
a = -12

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