15y-40=3y+20

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Solution for 15y-40=3y+20 equation:


Simplifying
15y + -40 = 3y + 20

Reorder the terms:
-40 + 15y = 3y + 20

Reorder the terms:
-40 + 15y = 20 + 3y

Solving
-40 + 15y = 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.
-40 + 15y + -3y = 20 + 3y + -3y

Combine like terms: 15y + -3y = 12y
-40 + 12y = 20 + 3y + -3y

Combine like terms: 3y + -3y = 0
-40 + 12y = 20 + 0
-40 + 12y = 20

Add '40' to each side of the equation.
-40 + 40 + 12y = 20 + 40

Combine like terms: -40 + 40 = 0
0 + 12y = 20 + 40
12y = 20 + 40

Combine like terms: 20 + 40 = 60
12y = 60

Divide each side by '12'.
y = 5

Simplifying
y = 5

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