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

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


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

Reorder the terms:
8x + -7(3 + x) = x + -21
8x + (3 * -7 + x * -7) = x + -21
8x + (-21 + -7x) = x + -21

Reorder the terms:
-21 + 8x + -7x = x + -21

Combine like terms: 8x + -7x = 1x
-21 + 1x = x + -21

Reorder the terms:
-21 + 1x = -21 + x

Add '21' to each side of the equation.
-21 + 21 + 1x = -21 + 21 + x

Combine like terms: -21 + 21 = 0
0 + 1x = -21 + 21 + x
1x = -21 + 21 + x

Combine like terms: -21 + 21 = 0
1x = 0 + x
1x = x

Solving
1x = 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.
1x + -1x = x + -1x

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

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

Simplifying
0 = 0

The solution to this equation could not be determined.

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