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jeyben [28]
3 years ago
12

-6+k÷5=-9 how do we work this out

Mathematics
1 answer:
Step2247 [10]3 years ago
3 0
First you have to multiply both sides by -5 which means you will multiply -5 by 6, -5 by k/5, and -5 by 9... So it should look like: -5×6+-5×k/5=-5+9.. after that.. it should look like -40+k=-45.. because the 5's in k/5 cancel out.. so then it should now look like k=-45+30... you subtract.. and k=-15
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Answer:

It will take nine years and four months for the refrigerator to pay for itself.

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