3(7x+3)-1=21x+8

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Solution for 3(7x+3)-1=21x+8 equation: 


Simplifying
3(7x + 3) + -1 = 21x + 8

Reorder the terms:
3(3 + 7x) + -1 = 21x + 8
(3 * 3 + 7x * 3) + -1 = 21x + 8
(9 + 21x) + -1 = 21x + 8

Reorder the terms:
9 + -1 + 21x = 21x + 8

Combine like terms: 9 + -1 = 8
8 + 21x = 21x + 8

Reorder the terms:
8 + 21x = 8 + 21x

Add '-8' to each side of the equation.
8 + -8 + 21x = 8 + -8 + 21x

Combine like terms: 8 + -8 = 0
0 + 21x = 8 + -8 + 21x
21x = 8 + -8 + 21x

Combine like terms: 8 + -8 = 0
21x = 0 + 21x
21x = 21x

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

Combine like terms: 21x + -21x = 0
0 = 21x + -21x

Combine like terms: 21x + -21x = 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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