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x*2+15x-800=0
We add all the numbers together, and all the variables
15x+x*2-800=0
Wy multiply elements
15x+2x-800=0
We add all the numbers together, and all the variables
17x-800=0
We move all terms containing x to the left, all other terms to the right
17x=800
x=800/17
x=47+1/17
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