Question

Solve the system of equations -5y+8x=-18 5y+2x=58

Answer 1

Answer:

(x,y) = (4, 10)

Step-by-step explanation:

-5y + 8x = -18

5y +2x =58

Adding both equations

-5y + 8x = -18

5y  + 2x = 58

0   + 10x = 40

    10x/10  = 40 / 10

     x = 4

putting x= 4 in equation 1

-5y + 8x = -18

-5y + 8(4) = -18

-5y + 32 = -18

-5y = -18 -32

-5y = -50

-5y/-5 = -50/-5

y= 10