Question

Hi, I dont understand this. can anyone explain how to solve it ASAP?

What is the x-value of the solution to the system of equations?
5x + 4y = 8
2x − 3y = 17

a. −3
b. −2
c. 4
d. 5

Answer 1

x=4, y=-3. (4, -3).

Explanation:

5x+4y=8

2x-3y=17

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2(5x+4y)=2(8)

-5(2x-3y)=-5(17)

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10x+8y=16

-10x+15y=-85

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23y=-69

y=-69/23

y=-3

5x+4(-3)=8

5x-12=8

5x=8+12

5x=20

x=20/5

x=4