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4x/7=4.2
We move all terms to the left:
4x/7-(4.2)=0
We add all the numbers together, and all the variables
4x/7-4.2=0
We multiply all the terms by the denominator
4x-(4.2)*7=0
We add all the numbers together, and all the variables
4x-29.4=0
We move all terms containing x to the left, all other terms to the right
4x=29.4
x=29.4/4
x=7+1/2.8571428571429
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