x+6(x-1)=21+7x

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Solution for x+6(x-1)=21+7x equation: 


Simplifying
x + 6(x + -1) = 21 + 7x

Reorder the terms:
x + 6(-1 + x) = 21 + 7x
x + (-1 * 6 + x * 6) = 21 + 7x
x + (-6 + 6x) = 21 + 7x

Reorder the terms:
-6 + x + 6x = 21 + 7x

Combine like terms: x + 6x = 7x
-6 + 7x = 21 + 7x

Add '-7x' to each side of the equation.
-6 + 7x + -7x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-6 + 0 = 21 + 7x + -7x
-6 = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-6 = 21 + 0
-6 = 21

Solving
-6 = 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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