8x-5x+9+21=18.

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Solution for 8x-5x+9+21=18. equation:



8x-5x+9+21=18.
We move all terms to the left:
8x-5x+9+21-(18.)=0
We add all the numbers together, and all the variables
8x-5x+9+21-18=0
We add all the numbers together, and all the variables
3x+12=0
We move all terms containing x to the left, all other terms to the right
3x=-12
x=-12/3
x=-4

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