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3 votes
4x + 7y= 60
- 4x + 7y= -4
O A. (1,0)
O B. (4,7)
O C. (8,4)
OD. (2,4)

User Augustomen
by
7.8k points

2 Answers

3 votes

Answer:

C. (8, 4)

Explanation:

I graphed it

4x + 7y= 60 - 4x + 7y= -4 O A. (1,0) O B. (4,7) O C. (8,4) OD. (2,4)-example-1
User Sean Holmesby
by
7.8k points
2 votes

Answer:

(8,4)

Explanation:

4x + 7y= 60

- 4x + 7y= -4

Add the two equations together to eliminate x

4x + 7y= 60

- 4x + 7y= -4

-----------------------

14y = 56

Divide each side by 14

14y/14 = 56/14

y = 4

Now find x

4x +7y = 60

4x +7(4) = 60

4x+28 = 60

Subtract 28 from each side

4x = 60-28

4x= 32

Divide by 4

4x/4 = 32/4

x =8

User Steboc
by
8.8k points

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