3y-3=y+7

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Solution for 3y-3=y+7 equation:


Simplifying
3y + -3 = y + 7

Reorder the terms:
-3 + 3y = y + 7

Reorder the terms:
-3 + 3y = 7 + y

Solving
-3 + 3y = 7 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
-3 + 3y + -1y = 7 + y + -1y

Combine like terms: 3y + -1y = 2y
-3 + 2y = 7 + y + -1y

Combine like terms: y + -1y = 0
-3 + 2y = 7 + 0
-3 + 2y = 7

Add '3' to each side of the equation.
-3 + 3 + 2y = 7 + 3

Combine like terms: -3 + 3 = 0
0 + 2y = 7 + 3
2y = 7 + 3

Combine like terms: 7 + 3 = 10
2y = 10

Divide each side by '2'.
y = 5

Simplifying
y = 5

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