15=2a-2

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Solution for 15=2a-2 equation:


Simplifying
15 = 2a + -2

Reorder the terms:
15 = -2 + 2a

Solving
15 = -2 + 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 + -2a = -2 + 2a + -2a

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

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

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

Combine like terms: -2 + -15 = -17
-2a = -17

Divide each side by '-2'.
a = 8.5

Simplifying
a = 8.5

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