-9(y+9)=4-8y

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Solution for -9(y+9)=4-8y equation:


Simplifying
-9(y + 9) = 4 + -8y

Reorder the terms:
-9(9 + y) = 4 + -8y
(9 * -9 + y * -9) = 4 + -8y
(-81 + -9y) = 4 + -8y

Solving
-81 + -9y = 4 + -8y

Solving for variable 'y'.

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

Add '8y' to each side of the equation.
-81 + -9y + 8y = 4 + -8y + 8y

Combine like terms: -9y + 8y = -1y
-81 + -1y = 4 + -8y + 8y

Combine like terms: -8y + 8y = 0
-81 + -1y = 4 + 0
-81 + -1y = 4

Add '81' to each side of the equation.
-81 + 81 + -1y = 4 + 81

Combine like terms: -81 + 81 = 0
0 + -1y = 4 + 81
-1y = 4 + 81

Combine like terms: 4 + 81 = 85
-1y = 85

Divide each side by '-1'.
y = -85

Simplifying
y = -85

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