120=2a-2

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Solution for 120=2a-2 equation:


Simplifying
120 = 2a + -2

Reorder the terms:
120 = -2 + 2a

Solving
120 = -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.
120 + -2a = -2 + 2a + -2a

Combine like terms: 2a + -2a = 0
120 + -2a = -2 + 0
120 + -2a = -2

Add '-120' to each side of the equation.
120 + -120 + -2a = -2 + -120

Combine like terms: 120 + -120 = 0
0 + -2a = -2 + -120
-2a = -2 + -120

Combine like terms: -2 + -120 = -122
-2a = -122

Divide each side by '-2'.
a = 61

Simplifying
a = 61

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