3y+4-y=8+y+5

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Solution for 3y+4-y=8+y+5 equation:


Simplifying
3y + 4 + -1y = 8 + y + 5

Reorder the terms:
4 + 3y + -1y = 8 + y + 5

Combine like terms: 3y + -1y = 2y
4 + 2y = 8 + y + 5

Reorder the terms:
4 + 2y = 8 + 5 + y

Combine like terms: 8 + 5 = 13
4 + 2y = 13 + y

Solving
4 + 2y = 13 + 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 = 13 + y + -1y

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

Combine like terms: y + -1y = 0
4 + 1y = 13 + 0
4 + 1y = 13

Add '-4' to each side of the equation.
4 + -4 + 1y = 13 + -4

Combine like terms: 4 + -4 = 0
0 + 1y = 13 + -4
1y = 13 + -4

Combine like terms: 13 + -4 = 9
1y = 9

Divide each side by '1'.
y = 9

Simplifying
y = 9

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