
Mark M. answered 07/31/20
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Mathematics Teacher - NCLB Highly Qualified
108 - [(2n / 5) + n] = n
108 - (7n / 5) = n
108 = 12n / 5
45 = n
Alivia E.
asked 07/31/20when 2/5 of a certin number is added to the number and the sum is subtracted from 108, the result is the orginal number. What is the orginal number.
(a) 35 (b) 45 (c) 54 (d) 135/2 (e) 270
Mark M. answered 07/31/20
Mathematics Teacher - NCLB Highly Qualified
108 - [(2n / 5) + n] = n
108 - (7n / 5) = n
108 = 12n / 5
45 = n
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