2a-2=42

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Solution for 2a-2=42 equation: 


Simplifying
2a + -2 = 42

Reorder the terms:
-2 + 2a = 42

Solving
-2 + 2a = 42

Solving for variable 'a'.

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

Add '2' to each side of the equation.
-2 + 2 + 2a = 42 + 2

Combine like terms: -2 + 2 = 0
0 + 2a = 42 + 2
2a = 42 + 2

Combine like terms: 42 + 2 = 44
2a = 44

Divide each side by '2'.
a = 22

Simplifying
a = 22

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