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Mrac [35]
3 years ago
6

What is the solution to this system of linear equations?y − 4x = 72y + 4x = 2(3, 1)(1, 3)(3, −1)(−1, 3)

Mathematics
2 answers:
Setler79 [48]3 years ago
5 0

If im understanding your post this is what i get


y − 4x = 72

+ y + 4x = 2

_________


2y= 74


Y= 72/2


Y= 36


y − 4x = 72

35-4x=72


-4x=72-35


-4x=37


X= 37/-4


X= - 37/4 or -9.25


Answer in point (-37/4, 36)

bulgar [2K]3 years ago
3 0

Answer:

The solution is the point (-1,3)

Step-by-step explanation:

we have

y-4x=7 ------> equation A

2y+4x=2 ------> equation B

Adds equation A and equation B

y-4x=7\\2y+4x=2\\-------\\y+2y=7+2\\3y=9\\y=3

Find the value of x

Substitute the value of y in the equation A

y-4x=7

3-4x=7

4x=3-7

4x=-4

x=-1

The solution is the point (-1,3)

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