Something simple
Algebra
Level
pending
If x = 3y, and y= 3.2 + 14.5(0.4), then what is x - y ?
The answer is 18.
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1 solution
3.2 + 14.5 x 0.4
= 3.2 + 5.8
= 9,
3 x 9 = 27,
x - y
= 27 - 9 = 18