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3x+0.5x+7x+0.9x=17x+0.9x-4x+7x+12+130
We move all terms to the left:
3x+0.5x+7x+0.9x-(17x+0.9x-4x+7x+12+130)=0
We add all the numbers together, and all the variables
3x+0.5x+7x+0.9x-(20.9x+142)=0
We add all the numbers together, and all the variables
11.4x-(20.9x+142)=0
We get rid of parentheses
11.4x-20.9x-142=0
We add all the numbers together, and all the variables
-9.5x-142=0
We move all terms containing x to the left, all other terms to the right
-9.5x=142
x=142/-9.5
x=-14+1/1.0555555555556
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