7(x-4)=7(8-2x)+21x

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Solution for 7(x-4)=7(8-2x)+21x equation:


Simplifying
7(x + -4) = 7(8 + -2x) + 21x

Reorder the terms:
7(-4 + x) = 7(8 + -2x) + 21x
(-4 * 7 + x * 7) = 7(8 + -2x) + 21x
(-28 + 7x) = 7(8 + -2x) + 21x
-28 + 7x = (8 * 7 + -2x * 7) + 21x
-28 + 7x = (56 + -14x) + 21x

Combine like terms: -14x + 21x = 7x
-28 + 7x = 56 + 7x

Add '-7x' to each side of the equation.
-28 + 7x + -7x = 56 + 7x + -7x

Combine like terms: 7x + -7x = 0
-28 + 0 = 56 + 7x + -7x
-28 = 56 + 7x + -7x

Combine like terms: 7x + -7x = 0
-28 = 56 + 0
-28 = 56

Solving
-28 = 56

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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