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

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


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

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

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

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

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

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

Solving
-21 = 21

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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