Mathematics
Math Question 17 - Please show work if possible for best answer...

### Question Description

I don’t understand this Mathematics question and need help to study.

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3x - y = - 8 ......................1

7x + 3y = - 72 ................2

multiplying eq 1 by3 and adding it with eq 2,then

9x - 3y = - 24

7x + 3y = - 72
-------------------

16x = - 96

x = - 6

Now putting the value of x in first equation,then

3(- 6) - y = - 8

- 18 - y = - 8

18 + 8 = y

y = - 10

Solution = (-6, -10)

Cornell University
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