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24-11-2019
Mathematics

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find 8m + 2n=-6 and 8m+7n=0

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FaiKBuffy FaiKBuffy

24-11-2019

Answer: m=-21/20, n=6/5

Step-by-step explanation:

8m+2n=-6

8m+7n=0

Subtract equation 1 from equation 2

8m+2n=-6

0m+5n=6

Divide equation 2 by 5

8m+2n=-6

n=6/5

Divide equation 1 by 2

4m+n=-3

n=6/5

Subtract equation 2 from equation 1

4m+0n=-21/5

Divide it by 4

m=-21/20

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