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7.7=35.07-3.9x
We move all terms to the left:
7.7-(35.07-3.9x)=0
We add all the numbers together, and all the variables
-(-3.9x+35.07)+7.7=0
We get rid of parentheses
3.9x-35.07+7.7=0
We add all the numbers together, and all the variables
3.9x-27.37=0
We move all terms containing x to the left, all other terms to the right
3.9x=27.37
x=27.37/3.9
x=7+0.07/3.9
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