y-1=-(y-1)

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Solution for y-1=-(y-1) equation:


Simplifying
y + -1 = -1(y + -1)

Reorder the terms:
-1 + y = -1(y + -1)

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

Solving
-1 + y = 1 + -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.
-1 + y + y = 1 + -1y + y

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

Combine like terms: -1y + y = 0
-1 + 2y = 1 + 0
-1 + 2y = 1

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

Combine like terms: -1 + 1 = 0
0 + 2y = 1 + 1
2y = 1 + 1

Combine like terms: 1 + 1 = 2
2y = 2

Divide each side by '2'.
y = 1

Simplifying
y = 1

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