8y+9=7y-8

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Solution for 8y+9=7y-8 equation:


Simplifying
8y + 9 = 7y + -8

Reorder the terms:
9 + 8y = 7y + -8

Reorder the terms:
9 + 8y = -8 + 7y

Solving
9 + 8y = -8 + 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.
9 + 8y + -7y = -8 + 7y + -7y

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

Combine like terms: 7y + -7y = 0
9 + 1y = -8 + 0
9 + 1y = -8

Add '-9' to each side of the equation.
9 + -9 + 1y = -8 + -9

Combine like terms: 9 + -9 = 0
0 + 1y = -8 + -9
1y = -8 + -9

Combine like terms: -8 + -9 = -17
1y = -17

Divide each side by '1'.
y = -17

Simplifying
y = -17

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