4 years ago

4x + y =6 -5x - y = 21

Mathematics

1 answer:

viva [34]4 years ago

8 0

Answer:

Step-by-step explanation:

Adding equation 1 and 2 we have

-x=27

Therefore x= -27

Substituting the value of x into equation 2 we have

-108+y = 6

y = 114

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