-7+3y+y=13

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Solution for -7+3y+y=13 equation: 


Simplifying
-7 + 3y + y = 13

Combine like terms: 3y + y = 4y
-7 + 4y = 13

Solving
-7 + 4y = 13

Solving for variable 'y'.

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

Add '7' to each side of the equation.
-7 + 7 + 4y = 13 + 7

Combine like terms: -7 + 7 = 0
0 + 4y = 13 + 7
4y = 13 + 7

Combine like terms: 13 + 7 = 20
4y = 20

Divide each side by '4'.
y = 5

Simplifying
y = 5

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