9(y+9)=10y-8

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Solution for 9(y+9)=10y-8 equation:


Simplifying
9(y + 9) = 10y + -8

Reorder the terms:
9(9 + y) = 10y + -8
(9 * 9 + y * 9) = 10y + -8
(81 + 9y) = 10y + -8

Reorder the terms:
81 + 9y = -8 + 10y

Solving
81 + 9y = -8 + 10y

Solving for variable 'y'.

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

Add '-10y' to each side of the equation.
81 + 9y + -10y = -8 + 10y + -10y

Combine like terms: 9y + -10y = -1y
81 + -1y = -8 + 10y + -10y

Combine like terms: 10y + -10y = 0
81 + -1y = -8 + 0
81 + -1y = -8

Add '-81' to each side of the equation.
81 + -81 + -1y = -8 + -81

Combine like terms: 81 + -81 = 0
0 + -1y = -8 + -81
-1y = -8 + -81

Combine like terms: -8 + -81 = -89
-1y = -89

Divide each side by '-1'.
y = 89

Simplifying
y = 89

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