-4y-2(-2y-7)=9+2(-1-y)

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Solution for -4y-2(-2y-7)=9+2(-1-y) equation:


Simplifying
-4y + -2(-2y + -7) = 9 + 2(-1 + -1y)

Reorder the terms:
-4y + -2(-7 + -2y) = 9 + 2(-1 + -1y)
-4y + (-7 * -2 + -2y * -2) = 9 + 2(-1 + -1y)
-4y + (14 + 4y) = 9 + 2(-1 + -1y)

Reorder the terms:
14 + -4y + 4y = 9 + 2(-1 + -1y)

Combine like terms: -4y + 4y = 0
14 + 0 = 9 + 2(-1 + -1y)
14 = 9 + 2(-1 + -1y)
14 = 9 + (-1 * 2 + -1y * 2)
14 = 9 + (-2 + -2y)

Combine like terms: 9 + -2 = 7
14 = 7 + -2y

Solving
14 = 7 + -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.
14 + 2y = 7 + -2y + 2y

Combine like terms: -2y + 2y = 0
14 + 2y = 7 + 0
14 + 2y = 7

Add '-14' to each side of the equation.
14 + -14 + 2y = 7 + -14

Combine like terms: 14 + -14 = 0
0 + 2y = 7 + -14
2y = 7 + -14

Combine like terms: 7 + -14 = -7
2y = -7

Divide each side by '2'.
y = -3.5

Simplifying
y = -3.5

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