6x-21=3(2x-7)

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


Simplifying
6x + -21 = 3(2x + -7)

Reorder the terms:
-21 + 6x = 3(2x + -7)

Reorder the terms:
-21 + 6x = 3(-7 + 2x)
-21 + 6x = (-7 * 3 + 2x * 3)
-21 + 6x = (-21 + 6x)

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

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

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

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

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

Combine like terms: 6x + -6x = 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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