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-2(1.7x+3.11)=4
We move all terms to the left:
-2(1.7x+3.11)-(4)=0
We multiply parentheses
-2x-6.22-4=0
We add all the numbers together, and all the variables
-2x-10.22=0
We move all terms containing x to the left, all other terms to the right
-2x=10.22
x=10.22/-2
x=-5+0.22/2
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