-7(3x-6)=-21x+42

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Solution for -7(3x-6)=-21x+42 equation: 


Simplifying
-7(3x + -6) = -21x + 42

Reorder the terms:
-7(-6 + 3x) = -21x + 42
(-6 * -7 + 3x * -7) = -21x + 42
(42 + -21x) = -21x + 42

Reorder the terms:
42 + -21x = 42 + -21x

Add '-42' to each side of the equation.
42 + -42 + -21x = 42 + -42 + -21x

Combine like terms: 42 + -42 = 0
0 + -21x = 42 + -42 + -21x
-21x = 42 + -42 + -21x

Combine like terms: 42 + -42 = 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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