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ad-work [718]
4 years ago
12

Three multiplied by the sum of 4 and a number is the same as 18 more than the number. Find the number.

Mathematics
1 answer:
arsen [322]4 years ago
6 0
3(4+n)=18+n
distribute
12+3n=18+n
minus n both sides
12+2n=18
minus 12 both sides
2n=6
divide by 2
n=3

the number is 3
equation is
3(4+n)=18+n
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