3y+8-y=y+4

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Solution for 3y+8-y=y+4 equation:


Simplifying
3y + 8 + -1y = y + 4

Reorder the terms:
8 + 3y + -1y = y + 4

Combine like terms: 3y + -1y = 2y
8 + 2y = y + 4

Reorder the terms:
8 + 2y = 4 + y

Solving
8 + 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.
8 + 2y + -1y = 4 + y + -1y

Combine like terms: 2y + -1y = 1y
8 + 1y = 4 + y + -1y

Combine like terms: y + -1y = 0
8 + 1y = 4 + 0
8 + 1y = 4

Add '-8' to each side of the equation.
8 + -8 + 1y = 4 + -8

Combine like terms: 8 + -8 = 0
0 + 1y = 4 + -8
1y = 4 + -8

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

Divide each side by '1'.
y = -4

Simplifying
y = -4

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