5y-3=7y-3y+21

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Solution for 5y-3=7y-3y+21 equation:


Simplifying
5y + -3 = 7y + -3y + 21

Reorder the terms:
-3 + 5y = 7y + -3y + 21

Reorder the terms:
-3 + 5y = 21 + 7y + -3y

Combine like terms: 7y + -3y = 4y
-3 + 5y = 21 + 4y

Solving
-3 + 5y = 21 + 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 + 5y + -4y = 21 + 4y + -4y

Combine like terms: 5y + -4y = 1y
-3 + 1y = 21 + 4y + -4y

Combine like terms: 4y + -4y = 0
-3 + 1y = 21 + 0
-3 + 1y = 21

Add '3' to each side of the equation.
-3 + 3 + 1y = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 1y = 21 + 3
1y = 21 + 3

Combine like terms: 21 + 3 = 24
1y = 24

Divide each side by '1'.
y = 24

Simplifying
y = 24

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