3 years ago

15 more than half a number is nine

2 answers:

6 0

(1/2)x+15 = 9
(1/2)x= -6
x = -12

3 0

15+1/2n=9
1/2n=9-15 (subtract 15 from both sides)
1/2n=-6
n=-6/(1/2) (divide both sides by 1/2)
n=-12 (answer)

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