y-15=4y

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Solution for y-15=4y equation:


Simplifying
y + -15 = 4y

Reorder the terms:
-15 + y = 4y

Solving
-15 + y = 4y

Solving for variable 'y'.

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

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

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

Combine like terms: 4y + -4y = 0
-15 + -3y = 0

Add '15' to each side of the equation.
-15 + 15 + -3y = 0 + 15

Combine like terms: -15 + 15 = 0
0 + -3y = 0 + 15
-3y = 0 + 15

Combine like terms: 0 + 15 = 15
-3y = 15

Divide each side by '-3'.
y = -5

Simplifying
y = -5

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