23=40-y

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Solution for 23=40-y equation:


Simplifying
23 = 40 + -1y

Solving
23 = 40 + -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.
23 + y = 40 + -1y + y

Combine like terms: -1y + y = 0
23 + y = 40 + 0
23 + y = 40

Add '-23' to each side of the equation.
23 + -23 + y = 40 + -23

Combine like terms: 23 + -23 = 0
0 + y = 40 + -23
y = 40 + -23

Combine like terms: 40 + -23 = 17
y = 17

Simplifying
y = 17

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