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6.5(209-x)+2x=836.5
We move all terms to the left:
6.5(209-x)+2x-(836.5)=0
We add all the numbers together, and all the variables
6.5(-1x+209)+2x-(836.5)=0
We add all the numbers together, and all the variables
2x+6.5(-1x+209)-836.5=0
We multiply parentheses
2x-6.5x+1358.5-836.5=0
We add all the numbers together, and all the variables
-4.5x+522=0
We move all terms containing x to the left, all other terms to the right
-4.5x=-522
x=-522/-4.5
x=+116
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