5y-25=3y-21

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Solution for 5y-25=3y-21 equation: 


Simplifying
5y + -25 = 3y + -21

Reorder the terms:
-25 + 5y = 3y + -21

Reorder the terms:
-25 + 5y = -21 + 3y

Solving
-25 + 5y = -21 + 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.
-25 + 5y + -3y = -21 + 3y + -3y

Combine like terms: 5y + -3y = 2y
-25 + 2y = -21 + 3y + -3y

Combine like terms: 3y + -3y = 0
-25 + 2y = -21 + 0
-25 + 2y = -21

Add '25' to each side of the equation.
-25 + 25 + 2y = -21 + 25

Combine like terms: -25 + 25 = 0
0 + 2y = -21 + 25
2y = -21 + 25

Combine like terms: -21 + 25 = 4
2y = 4

Divide each side by '2'.
y = 2

Simplifying
y = 2

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