2y+21=5y+3

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Solution for 2y+21=5y+3 equation:


Simplifying
2y + 21 = 5y + 3

Reorder the terms:
21 + 2y = 5y + 3

Reorder the terms:
21 + 2y = 3 + 5y

Solving
21 + 2y = 3 + 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.
21 + 2y + -5y = 3 + 5y + -5y

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

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

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

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

Combine like terms: 3 + -21 = -18
-3y = -18

Divide each side by '-3'.
y = 6

Simplifying
y = 6

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