-2a+9=15

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Solution for -2a+9=15 equation: 


Simplifying
-2a + 9 = 15

Reorder the terms:
9 + -2a = 15

Solving
9 + -2a = 15

Solving for variable 'a'.

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

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 = 6
-2a = 6

Divide each side by '-2'.
a = -3

Simplifying
a = -3

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