(3)(2)(2)5x=60
12(5x)=60
12(5x)/12=60/12
5x=5
x=1
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9x = 60x = 60/9 = 6 2/3 (or 6.67)
65
60/x = 5 60 = 5x x = 12
Algebraically, you're asking to solve for x: 5x - 60 = x4x - 60 = 04x = 60x = 15Let's test just to be sure:15*5 = 7575 - 60 = 15It works, so 15 is the magic number.
15 times 60=900