-2(y-9)=8(7-y)-8

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Solution for -2(y-9)=8(7-y)-8 equation:


Simplifying
-2(y + -9) = 8(7 + -1y) + -8

Reorder the terms:
-2(-9 + y) = 8(7 + -1y) + -8
(-9 * -2 + y * -2) = 8(7 + -1y) + -8
(18 + -2y) = 8(7 + -1y) + -8
18 + -2y = (7 * 8 + -1y * 8) + -8
18 + -2y = (56 + -8y) + -8

Reorder the terms:
18 + -2y = 56 + -8 + -8y

Combine like terms: 56 + -8 = 48
18 + -2y = 48 + -8y

Solving
18 + -2y = 48 + -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.
18 + -2y + 8y = 48 + -8y + 8y

Combine like terms: -2y + 8y = 6y
18 + 6y = 48 + -8y + 8y

Combine like terms: -8y + 8y = 0
18 + 6y = 48 + 0
18 + 6y = 48

Add '-18' to each side of the equation.
18 + -18 + 6y = 48 + -18

Combine like terms: 18 + -18 = 0
0 + 6y = 48 + -18
6y = 48 + -18

Combine like terms: 48 + -18 = 30
6y = 30

Divide each side by '6'.
y = 5

Simplifying
y = 5

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