3-3y=5y-21

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Solution for 3-3y=5y-21 equation:


Simplifying
3 + -3y = 5y + -21

Reorder the terms:
3 + -3y = -21 + 5y

Solving
3 + -3y = -21 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
3 + -3y + -5y = -21 + 5y + -5y

Combine like terms: -3y + -5y = -8y
3 + -8y = -21 + 5y + -5y

Combine like terms: 5y + -5y = 0
3 + -8y = -21 + 0
3 + -8y = -21

Add '-3' to each side of the equation.
3 + -3 + -8y = -21 + -3

Combine like terms: 3 + -3 = 0
0 + -8y = -21 + -3
-8y = -21 + -3

Combine like terms: -21 + -3 = -24
-8y = -24

Divide each side by '-8'.
y = 3

Simplifying
y = 3

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