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ss7ja [257]
3 years ago
8

The difference of twice a number and 9 is at least −15

Mathematics
1 answer:
Greeley [361]3 years ago
6 0
Difference means subtraction (-)
Twice a number means × 2
is at least ≥

Put it all together
2b - 9 ≥ -15

Then you can solve for b
2b - 9 ≥ -15
2b ≥ -15 + 9
2b ≥ - 6
b ≥ - 6/2
b ≥ - 3
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