3y-3=4y-15

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Solution for 3y-3=4y-15 equation:


Simplifying
3y + -3 = 4y + -15

Reorder the terms:
-3 + 3y = 4y + -15

Reorder the terms:
-3 + 3y = -15 + 4y

Solving
-3 + 3y = -15 + 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.
-3 + 3y + -4y = -15 + 4y + -4y

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

Combine like terms: 4y + -4y = 0
-3 + -1y = -15 + 0
-3 + -1y = -15

Add '3' to each side of the equation.
-3 + 3 + -1y = -15 + 3

Combine like terms: -3 + 3 = 0
0 + -1y = -15 + 3
-1y = -15 + 3

Combine like terms: -15 + 3 = -12
-1y = -12

Divide each side by '-1'.
y = 12

Simplifying
y = 12

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