-7x-8=-6x+21

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


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

Reorder the terms:
-8 + -7x = -6x + 21

Reorder the terms:
-8 + -7x = 21 + -6x

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

Solving for variable 'x'.

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

Add '6x' to each side of the equation.
-8 + -7x + 6x = 21 + -6x + 6x

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

Combine like terms: -6x + 6x = 0
-8 + -1x = 21 + 0
-8 + -1x = 21

Add '8' to each side of the equation.
-8 + 8 + -1x = 21 + 8

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

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

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

Simplifying
x = -29

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