-21+6x-7x=8

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Solution for -21+6x-7x=8 equation: 


Simplifying
-21 + 6x + -7x = 8

Combine like terms: 6x + -7x = -1x
-21 + -1x = 8

Solving
-21 + -1x = 8

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 + -1x = 8 + 21

Combine like terms: -21 + 21 = 0
0 + -1x = 8 + 21
-1x = 8 + 21

Combine like terms: 8 + 21 = 29
-1x = 29

Divide each side by '-1'.
x = -29

Simplifying
x = -29

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