2y-10=20

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Solution for 2y-10=20 equation: 


Simplifying
2y + -10 = 20

Reorder the terms:
-10 + 2y = 20

Solving
-10 + 2y = 20

Solving for variable 'y'.

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

Add '10' to each side of the equation.
-10 + 10 + 2y = 20 + 10

Combine like terms: -10 + 10 = 0
0 + 2y = 20 + 10
2y = 20 + 10

Combine like terms: 20 + 10 = 30
2y = 30

Divide each side by '2'.
y = 15

Simplifying
y = 15

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