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-21-1.7x=49+3.3x
We move all terms to the left:
-21-1.7x-(49+3.3x)=0
We add all the numbers together, and all the variables
-1.7x-(3.3x+49)-21=0
We get rid of parentheses
-1.7x-3.3x-49-21=0
We add all the numbers together, and all the variables
-5x-70=0
We move all terms containing x to the left, all other terms to the right
-5x=70
x=70/-5
x=-14
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