-2y-5=-(y-4)

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Solution for -2y-5=-(y-4) equation:


Simplifying
-2y + -5 = -1(y + -4)

Reorder the terms:
-5 + -2y = -1(y + -4)

Reorder the terms:
-5 + -2y = -1(-4 + y)
-5 + -2y = (-4 * -1 + y * -1)
-5 + -2y = (4 + -1y)

Solving
-5 + -2y = 4 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
-5 + -2y + y = 4 + -1y + y

Combine like terms: -2y + y = -1y
-5 + -1y = 4 + -1y + y

Combine like terms: -1y + y = 0
-5 + -1y = 4 + 0
-5 + -1y = 4

Add '5' to each side of the equation.
-5 + 5 + -1y = 4 + 5

Combine like terms: -5 + 5 = 0
0 + -1y = 4 + 5
-1y = 4 + 5

Combine like terms: 4 + 5 = 9
-1y = 9

Divide each side by '-1'.
y = -9

Simplifying
y = -9

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