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nevsk [136]
3 years ago
10

Two-fifths of one less than a number is less than three-fifths of one more than that number. What numbers are in the solution se

t of this problem?
1) x<-5
2)x>-5
3)x>-1
4)x<-1
Mathematics
1 answer:
Anestetic [448]3 years ago
6 0
(2/5)(x-1)<(3/5)(x+1)  perform indicated multiplications

(2x-2)/5<(3x+3)/5  multiply both sides by 5

2x-2<3x+3  add 2 to both sides

2x<3x+5  subtract 3x from both sides

-x<5  divide both sides by -1  (remember to reverse direction of inequality sign when multiplying/dividing by a negative value)

x>-5
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