-21-3x-7x+x=0

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Solution for -21-3x-7x+x=0 equation:


Simplifying
-21 + -3x + -7x + x = 0

Combine like terms: -3x + -7x = -10x
-21 + -10x + x = 0

Combine like terms: -10x + x = -9x
-21 + -9x = 0

Solving
-21 + -9x = 0

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + -9x = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -9x = 0 + 21
-9x = 0 + 21

Combine like terms: 0 + 21 = 21
-9x = 21

Divide each side by '-9'.
x = -2.333333333

Simplifying
x = -2.333333333

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