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strojnjashka [21]
3 years ago
15

Twice the sum of a number and 4 is equal to 9

Mathematics
2 answers:
BARSIC [14]3 years ago
7 0
It could be 2.5+2.5=5 and then add that to 4 and that equals 9
Y_Kistochka [10]3 years ago
6 0
2x(4+n)=9
8 +2n = 9
2n = 9-8
2n = 1
n = 0.5
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