-1+11=7-18+y

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Solution for -1+11=7-18+y equation:


Simplifying
-1 + 11 = 7 + -18 + y

Combine like terms: -1 + 11 = 10
10 = 7 + -18 + y

Combine like terms: 7 + -18 = -11
10 = -11 + y

Solving
10 = -11 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
10 + -1y = -11 + y + -1y

Combine like terms: y + -1y = 0
10 + -1y = -11 + 0
10 + -1y = -11

Add '-10' to each side of the equation.
10 + -10 + -1y = -11 + -10

Combine like terms: 10 + -10 = 0
0 + -1y = -11 + -10
-1y = -11 + -10

Combine like terms: -11 + -10 = -21
-1y = -21

Divide each side by '-1'.
y = 21

Simplifying
y = 21

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