1-y=2

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Solution for 1-y=2 equation: 


Simplifying
1 + -1y = 2

Solving
1 + -1y = 2

Solving for variable 'y'.

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

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

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

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

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

Simplifying
y = -1

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