15=2y+1-3y-y

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Solution for 15=2y+1-3y-y equation:


Simplifying
15 = 2y + 1 + -3y + -1y

Reorder the terms:
15 = 1 + 2y + -3y + -1y

Combine like terms: 2y + -3y = -1y
15 = 1 + -1y + -1y

Combine like terms: -1y + -1y = -2y
15 = 1 + -2y

Solving
15 = 1 + -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.
15 + 2y = 1 + -2y + 2y

Combine like terms: -2y + 2y = 0
15 + 2y = 1 + 0
15 + 2y = 1

Add '-15' to each side of the equation.
15 + -15 + 2y = 1 + -15

Combine like terms: 15 + -15 = 0
0 + 2y = 1 + -15
2y = 1 + -15

Combine like terms: 1 + -15 = -14
2y = -14

Divide each side by '2'.
y = -7

Simplifying
y = -7

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