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0.7x+2.8=7
We move all terms to the left:
0.7x+2.8-(7)=0
We add all the numbers together, and all the variables
0.7x-4.2=0
We move all terms containing x to the left, all other terms to the right
0.7x=4.2
x=4.2/0.7
x=6+8.8817841970013E-16/0.7
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