-8x+9x-21=-21-16

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Solution for -8x+9x-21=-21-16 equation:


Simplifying
-8x + 9x + -21 = -21 + -16

Reorder the terms:
-21 + -8x + 9x = -21 + -16

Combine like terms: -8x + 9x = 1x
-21 + 1x = -21 + -16

Combine like terms: -21 + -16 = -37
-21 + 1x = -37

Solving
-21 + 1x = -37

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 = -37 + 21

Combine like terms: -21 + 21 = 0
0 + 1x = -37 + 21
1x = -37 + 21

Combine like terms: -37 + 21 = -16
1x = -16

Divide each side by '1'.
x = -16

Simplifying
x = -16

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