90-9y=y

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Solution for 90-9y=y equation:


Simplifying
90 + -9y = y

Solving
90 + -9y = 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.
90 + -9y + -1y = y + -1y

Combine like terms: -9y + -1y = -10y
90 + -10y = y + -1y

Combine like terms: y + -1y = 0
90 + -10y = 0

Add '-90' to each side of the equation.
90 + -90 + -10y = 0 + -90

Combine like terms: 90 + -90 = 0
0 + -10y = 0 + -90
-10y = 0 + -90

Combine like terms: 0 + -90 = -90
-10y = -90

Divide each side by '-10'.
y = 9

Simplifying
y = 9

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