-2(-y+4)+(y-13)=

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Solution for -2(-y+4)+(y-13)= equation:


Simplifying
-2(-1y + 4) + (y + -13) = 0

Reorder the terms:
-2(4 + -1y) + (y + -13) = 0
(4 * -2 + -1y * -2) + (y + -13) = 0
(-8 + 2y) + (y + -13) = 0

Reorder the terms:
-8 + 2y + (-13 + y) = 0

Remove parenthesis around (-13 + y)
-8 + 2y + -13 + y = 0

Reorder the terms:
-8 + -13 + 2y + y = 0

Combine like terms: -8 + -13 = -21
-21 + 2y + y = 0

Combine like terms: 2y + y = 3y
-21 + 3y = 0

Solving
-21 + 3y = 0

Solving for variable 'y'.

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

Add '21' to each side of the equation.
-21 + 21 + 3y = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 3y = 0 + 21
3y = 0 + 21

Combine like terms: 0 + 21 = 21
3y = 21

Divide each side by '3'.
y = 7

Simplifying
y = 7

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