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

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


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

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

Reorder the terms:
21 + 21x = -4 + 21x

Add '-21x' to each side of the equation.
21 + 21x + -21x = -4 + 21x + -21x

Combine like terms: 21x + -21x = 0
21 + 0 = -4 + 21x + -21x
21 = -4 + 21x + -21x

Combine like terms: 21x + -21x = 0
21 = -4 + 0
21 = -4

Solving
21 = -4

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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