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

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


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

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

Reorder the terms:
7 + -21x = 7 + -21x

Add '-7' to each side of the equation.
7 + -7 + -21x = 7 + -7 + -21x

Combine like terms: 7 + -7 = 0
0 + -21x = 7 + -7 + -21x
-21x = 7 + -7 + -21x

Combine like terms: 7 + -7 = 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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