8=y-9

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Solution for 8=y-9 equation:


Simplifying
8 = y + -9

Reorder the terms:
8 = -9 + y

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

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

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

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

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

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

Simplifying
y = 17

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