-3y-5=y+15

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Solution for -3y-5=y+15 equation:


Simplifying
-3y + -5 = y + 15

Reorder the terms:
-5 + -3y = y + 15

Reorder the terms:
-5 + -3y = 15 + y

Solving
-5 + -3y = 15 + 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.
-5 + -3y + -1y = 15 + y + -1y

Combine like terms: -3y + -1y = -4y
-5 + -4y = 15 + y + -1y

Combine like terms: y + -1y = 0
-5 + -4y = 15 + 0
-5 + -4y = 15

Add '5' to each side of the equation.
-5 + 5 + -4y = 15 + 5

Combine like terms: -5 + 5 = 0
0 + -4y = 15 + 5
-4y = 15 + 5

Combine like terms: 15 + 5 = 20
-4y = 20

Divide each side by '-4'.
y = -5

Simplifying
y = -5

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