-12=4-1-y

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Solution for -12=4-1-y equation:


Simplifying
-12 = 4 + -1 + -1y

Combine like terms: 4 + -1 = 3
-12 = 3 + -1y

Solving
-12 = 3 + -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.
-12 + y = 3 + -1y + y

Combine like terms: -1y + y = 0
-12 + y = 3 + 0
-12 + y = 3

Add '12' to each side of the equation.
-12 + 12 + y = 3 + 12

Combine like terms: -12 + 12 = 0
0 + y = 3 + 12
y = 3 + 12

Combine like terms: 3 + 12 = 15
y = 15

Simplifying
y = 15

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