3(7x-4)=21x-12

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Solution for 3(7x-4)=21x-12 equation:


Simplifying
3(7x + -4) = 21x + -12

Reorder the terms:
3(-4 + 7x) = 21x + -12
(-4 * 3 + 7x * 3) = 21x + -12
(-12 + 21x) = 21x + -12

Reorder the terms:
-12 + 21x = -12 + 21x

Add '12' to each side of the equation.
-12 + 12 + 21x = -12 + 12 + 21x

Combine like terms: -12 + 12 = 0
0 + 21x = -12 + 12 + 21x
21x = -12 + 12 + 21x

Combine like terms: -12 + 12 = 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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