7y-20=2y-10

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Solution for 7y-20=2y-10 equation: 


Simplifying
7y + -20 = 2y + -10

Reorder the terms:
-20 + 7y = 2y + -10

Reorder the terms:
-20 + 7y = -10 + 2y

Solving
-20 + 7y = -10 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
-20 + 7y + -2y = -10 + 2y + -2y

Combine like terms: 7y + -2y = 5y
-20 + 5y = -10 + 2y + -2y

Combine like terms: 2y + -2y = 0
-20 + 5y = -10 + 0
-20 + 5y = -10

Add '20' to each side of the equation.
-20 + 20 + 5y = -10 + 20

Combine like terms: -20 + 20 = 0
0 + 5y = -10 + 20
5y = -10 + 20

Combine like terms: -10 + 20 = 10
5y = 10

Divide each side by '5'.
y = 2

Simplifying
y = 2

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