Question

please solve it for me
i will mark you brainliast​

Answer 1

Answer:

2x + 5y +2z=-38

x= -19-z-2.5y.... (1)

-57-3z-7.5y-2y+4z=17

z-9.5y=74

z=74+9.5y..... (2)

therefore x= -19-74-9.5y-2.5y

x= -93-12y

558+72y+y-518-66.5y=-12

52=-6.5y

therefore y=-8

hence x= -93+96

x=3

and z = 74+ (-76)

z=-2

Therefore, values of x, y and z are 3,-8and-2 respectively.