3y-y+5=4y-y+20

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Solution for 3y-y+5=4y-y+20 equation:


Simplifying
3y + -1y + 5 = 4y + -1y + 20

Reorder the terms:
5 + 3y + -1y = 4y + -1y + 20

Combine like terms: 3y + -1y = 2y
5 + 2y = 4y + -1y + 20

Reorder the terms:
5 + 2y = 20 + 4y + -1y

Combine like terms: 4y + -1y = 3y
5 + 2y = 20 + 3y

Solving
5 + 2y = 20 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
5 + 2y + -3y = 20 + 3y + -3y

Combine like terms: 2y + -3y = -1y
5 + -1y = 20 + 3y + -3y

Combine like terms: 3y + -3y = 0
5 + -1y = 20 + 0
5 + -1y = 20

Add '-5' to each side of the equation.
5 + -5 + -1y = 20 + -5

Combine like terms: 5 + -5 = 0
0 + -1y = 20 + -5
-1y = 20 + -5

Combine like terms: 20 + -5 = 15
-1y = 15

Divide each side by '-1'.
y = -15

Simplifying
y = -15

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