-5y-1(5y-9)=1+2(8-y)

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Solution for -5y-1(5y-9)=1+2(8-y) equation:


Simplifying
-5y + -1(5y + -9) = 1 + 2(8 + -1y)

Reorder the terms:
-5y + -1(-9 + 5y) = 1 + 2(8 + -1y)
-5y + (-9 * -1 + 5y * -1) = 1 + 2(8 + -1y)
-5y + (9 + -5y) = 1 + 2(8 + -1y)

Reorder the terms:
9 + -5y + -5y = 1 + 2(8 + -1y)

Combine like terms: -5y + -5y = -10y
9 + -10y = 1 + 2(8 + -1y)
9 + -10y = 1 + (8 * 2 + -1y * 2)
9 + -10y = 1 + (16 + -2y)

Combine like terms: 1 + 16 = 17
9 + -10y = 17 + -2y

Solving
9 + -10y = 17 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
9 + -10y + 2y = 17 + -2y + 2y

Combine like terms: -10y + 2y = -8y
9 + -8y = 17 + -2y + 2y

Combine like terms: -2y + 2y = 0
9 + -8y = 17 + 0
9 + -8y = 17

Add '-9' to each side of the equation.
9 + -9 + -8y = 17 + -9

Combine like terms: 9 + -9 = 0
0 + -8y = 17 + -9
-8y = 17 + -9

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

Divide each side by '-8'.
y = -1

Simplifying
y = -1

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