5y-21=3y+3

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


Simplifying
5y + -21 = 3y + 3

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

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

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

Combine like terms: 5y + -3y = 2y
-21 + 2y = 3 + 3y + -3y

Combine like terms: 3y + -3y = 0
-21 + 2y = 3 + 0
-21 + 2y = 3

Add '21' to each side of the equation.
-21 + 21 + 2y = 3 + 21

Combine like terms: -21 + 21 = 0
0 + 2y = 3 + 21
2y = 3 + 21

Combine like terms: 3 + 21 = 24
2y = 24

Divide each side by '2'.
y = 12

Simplifying
y = 12

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