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Step-by-step explanation:
1
___________ = 4/7
1
1 + ______
1
1+ ___
x
reciprocate on both sides
1
1+ _________ =7/4
1
1+ _____
x
subtract 1 from both sides
1/(1+(1/x)) = 7/4-1 =3/4
reciprocate on both sides
1+(1/x) = 4/3
subtract 1 from both sides
1/x =4/3-1=1/3
1/x=1/3
x=3
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