9y-8=y+9

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


Simplifying
9y + -8 = y + 9

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

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

Solving
-8 + 9y = 9 + 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 + 9y + -1y = 9 + y + -1y

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

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

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

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

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

Divide each side by '8'.
y = 2.125

Simplifying
y = 2.125

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