3y+4-y=3+y-7

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


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

Reorder the terms:
4 + 3y + -1y = 3 + y + -7

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

Reorder the terms:
4 + 2y = 3 + -7 + y

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

Solving
4 + 2y = -4 + 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.
4 + 2y + -1y = -4 + y + -1y

Combine like terms: 2y + -1y = 1y
4 + 1y = -4 + y + -1y

Combine like terms: y + -1y = 0
4 + 1y = -4 + 0
4 + 1y = -4

Add '-4' to each side of the equation.
4 + -4 + 1y = -4 + -4

Combine like terms: 4 + -4 = 0
0 + 1y = -4 + -4
1y = -4 + -4

Combine like terms: -4 + -4 = -8
1y = -8

Divide each side by '1'.
y = -8

Simplifying
y = -8

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