9y+2-y=2+7y-1

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Solution for 9y+2-y=2+7y-1 equation: 


Simplifying
9y + 2 + -1y = 2 + 7y + -1

Reorder the terms:
2 + 9y + -1y = 2 + 7y + -1

Combine like terms: 9y + -1y = 8y
2 + 8y = 2 + 7y + -1

Reorder the terms:
2 + 8y = 2 + -1 + 7y

Combine like terms: 2 + -1 = 1
2 + 8y = 1 + 7y

Solving
2 + 8y = 1 + 7y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-7y' to each side of the equation.
2 + 8y + -7y = 1 + 7y + -7y

Combine like terms: 8y + -7y = 1y
2 + 1y = 1 + 7y + -7y

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

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

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

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

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

Simplifying
y = -1

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