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

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Solution for 2y-9+2(7y+8)=-2(y+1) equation:


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

Reorder the terms:
2y + -9 + 2(8 + 7y) = -2(y + 1)
2y + -9 + (8 * 2 + 7y * 2) = -2(y + 1)
2y + -9 + (16 + 14y) = -2(y + 1)

Reorder the terms:
-9 + 16 + 2y + 14y = -2(y + 1)

Combine like terms: -9 + 16 = 7
7 + 2y + 14y = -2(y + 1)

Combine like terms: 2y + 14y = 16y
7 + 16y = -2(y + 1)

Reorder the terms:
7 + 16y = -2(1 + y)
7 + 16y = (1 * -2 + y * -2)
7 + 16y = (-2 + -2y)

Solving
7 + 16y = -2 + -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.
7 + 16y + 2y = -2 + -2y + 2y

Combine like terms: 16y + 2y = 18y
7 + 18y = -2 + -2y + 2y

Combine like terms: -2y + 2y = 0
7 + 18y = -2 + 0
7 + 18y = -2

Add '-7' to each side of the equation.
7 + -7 + 18y = -2 + -7

Combine like terms: 7 + -7 = 0
0 + 18y = -2 + -7
18y = -2 + -7

Combine like terms: -2 + -7 = -9
18y = -9

Divide each side by '18'.
y = -0.5

Simplifying
y = -0.5

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