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27-05-2020
Mathematics

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Eight times a number plus five times another number is -13. The sum of the number is 1. What are the nymber?

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8716566 8716566

27-05-2020

Answer:

x=-6 y=7

Step-by-step explanation:

8x+5y=-13; x+y=1

Isolate x and substitute

(-13-5y)/8 +y=1

Isolate y

y=7

substitute y=7

(-13-5*7)/8=-6

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