SOLUTION: x/1.5-x/3=7
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Question 223877
:
x/1.5-x/3=7
Answer by
checkley77(12569)
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x/1.5-x/3=7
(2x-x)/3=7
x=7*3
x=21 ans.
Proof:
21/1.5-21/3=7
14-7=7
7=7
(