-7(3+8x)=x-21

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Solution for -7(3+8x)=x-21 equation:


Simplifying
-7(3 + 8x) = x + -21
(3 * -7 + 8x * -7) = x + -21
(-21 + -56x) = x + -21

Reorder the terms:
-21 + -56x = -21 + x

Add '21' to each side of the equation.
-21 + 21 + -56x = -21 + 21 + x

Combine like terms: -21 + 21 = 0
0 + -56x = -21 + 21 + x
-56x = -21 + 21 + x

Combine like terms: -21 + 21 = 0
-56x = 0 + x
-56x = x

Solving
-56x = x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.
-56x + -1x = x + -1x

Combine like terms: -56x + -1x = -57x
-57x = x + -1x

Combine like terms: x + -1x = 0
-57x = 0

Divide each side by '-57'.
x = 0

Simplifying
x = 0

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