2x-20=42

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Solution for 2x-20=42 equation: 


Simplifying
2x + -20 = 42

Reorder the terms:
-20 + 2x = 42

Solving
-20 + 2x = 42

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + 2x = 42 + 20

Combine like terms: -20 + 20 = 0
0 + 2x = 42 + 20
2x = 42 + 20

Combine like terms: 42 + 20 = 62
2x = 62

Divide each side by '2'.
x = 31

Simplifying
x = 31

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