Answer :

Answer:

y = 18/4x × 5

y= 9/2x × 5

I don't know

Answer:

y = 2

Step-by-step explanation:

4x - 5y = 18                                  (1)

8x + y = 58                                  (2)

from equation (2)

y = 58 - 8x                                   (3)

substituting the value of y from equation (3) into equation (1)

4x - 5(58 - 8x) = 18

4x - 290 + 40x = 18

44x = 18 + 290

44x = 308

x = 308/44 = 7

substituting value of x in equation (3)

y = 58 - 8(7) = 58 - 56 = 2

thus,

y = 2