21=6y+3

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Solution for 21=6y+3 equation:


Simplifying
21 = 6y + 3

Reorder the terms:
21 = 3 + 6y

Solving
21 = 3 + 6y

Solving for variable 'y'.

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

Add '-6y' to each side of the equation.
21 + -6y = 3 + 6y + -6y

Combine like terms: 6y + -6y = 0
21 + -6y = 3 + 0
21 + -6y = 3

Add '-21' to each side of the equation.
21 + -21 + -6y = 3 + -21

Combine like terms: 21 + -21 = 0
0 + -6y = 3 + -21
-6y = 3 + -21

Combine like terms: 3 + -21 = -18
-6y = -18

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

Simplifying
y = 3

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