y+3y-y=20+y

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Solution for y+3y-y=20+y equation:


Simplifying
y + 3y + -1y = 20 + y

Combine like terms: y + 3y = 4y
4y + -1y = 20 + y

Combine like terms: 4y + -1y = 3y
3y = 20 + y

Solving
3y = 20 + 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.
3y + -1y = 20 + y + -1y

Combine like terms: 3y + -1y = 2y
2y = 20 + y + -1y

Combine like terms: y + -1y = 0
2y = 20 + 0
2y = 20

Divide each side by '2'.
y = 10

Simplifying
y = 10

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