-2a+3=-15

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Solution for -2a+3=-15 equation: 


Simplifying
-2a + 3 = -15

Reorder the terms:
3 + -2a = -15

Solving
3 + -2a = -15

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 + -2a = -15 + -3

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

Combine like terms: -15 + -3 = -18
-2a = -18

Divide each side by '-2'.
a = 9

Simplifying
a = 9

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