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(2.8+x)3.1=2.709
We move all terms to the left:
(2.8+x)3.1-(2.709)=0
We add all the numbers together, and all the variables
(x+2.8)3.1-(2.709)=0
We add all the numbers together, and all the variables
(x+2.8)3.1-2.709=0
We multiply parentheses
3.1x+8.68-2.709=0
We add all the numbers together, and all the variables
3.1x+5.971=0
We move all terms containing x to the left, all other terms to the right
3.1x=-5.971
x=-5.971/3.1
x=-1+2.871/3.1
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