3(7+2y)-21=6y

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Solution for 3(7+2y)-21=6y equation: 


Simplifying
3(7 + 2y) + -21 = 6y
(7 * 3 + 2y * 3) + -21 = 6y
(21 + 6y) + -21 = 6y

Reorder the terms:
21 + -21 + 6y = 6y

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

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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