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x*0.68=100*0.8
We move all terms to the left:
x*0.68-(100*0.8)=0
We add all the numbers together, and all the variables
x*0.68-80=0
Wy multiply elements
0.68x-80=0
We move all terms containing x to the left, all other terms to the right
0.68x=80
x=80/0.68
x=117+0.44/0.68
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