40+2y=100-y

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Solution for 40+2y=100-y equation:


Simplifying
40 + 2y = 100 + -1y

Solving
40 + 2y = 100 + -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.
40 + 2y + y = 100 + -1y + y

Combine like terms: 2y + y = 3y
40 + 3y = 100 + -1y + y

Combine like terms: -1y + y = 0
40 + 3y = 100 + 0
40 + 3y = 100

Add '-40' to each side of the equation.
40 + -40 + 3y = 100 + -40

Combine like terms: 40 + -40 = 0
0 + 3y = 100 + -40
3y = 100 + -40

Combine like terms: 100 + -40 = 60
3y = 60

Divide each side by '3'.
y = 20

Simplifying
y = 20

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