-8x+-9x-21=-12-16

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Solution for -8x+-9x-21=-12-16 equation:


Simplifying
-8x + -9x + -21 = -12 + -16

Reorder the terms:
-21 + -8x + -9x = -12 + -16

Combine like terms: -8x + -9x = -17x
-21 + -17x = -12 + -16

Combine like terms: -12 + -16 = -28
-21 + -17x = -28

Solving
-21 + -17x = -28

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 + -17x = -28 + 21

Combine like terms: -21 + 21 = 0
0 + -17x = -28 + 21
-17x = -28 + 21

Combine like terms: -28 + 21 = -7
-17x = -7

Divide each side by '-17'.
x = 0.4117647059

Simplifying
x = 0.4117647059

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