2y-20=42

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Solution for 2y-20=42 equation: 


Simplifying
2y + -20 = 42

Reorder the terms:
-20 + 2y = 42

Solving
-20 + 2y = 42

Solving for variable 'y'.

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

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

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

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

Divide each side by '2'.
y = 31

Simplifying
y = 31

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