7-3y+4y-y=13-2y

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Solution for 7-3y+4y-y=13-2y equation:


Simplifying
7 + -3y + 4y + -1y = 13 + -2y

Combine like terms: -3y + 4y = 1y
7 + 1y + -1y = 13 + -2y

Combine like terms: 1y + -1y = 0
7 + 0 = 13 + -2y
7 = 13 + -2y

Solving
7 = 13 + -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.
7 + 2y = 13 + -2y + 2y

Combine like terms: -2y + 2y = 0
7 + 2y = 13 + 0
7 + 2y = 13

Add '-7' to each side of the equation.
7 + -7 + 2y = 13 + -7

Combine like terms: 7 + -7 = 0
0 + 2y = 13 + -7
2y = 13 + -7

Combine like terms: 13 + -7 = 6
2y = 6

Divide each side by '2'.
y = 3

Simplifying
y = 3

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