Question

9y-5x.=3,x+z=1 and z+2y=2.find x​

Answer 1

Answer:

x=3

Step-by-step explanation:

z+x=1......................(1)

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

cancel z

now , value x-2y=-1

x = -1+2y...............(3)

put value of (x =-1 +2y) in equation 9y-5x=3

9y-5(-1+2y)=3

9y+5-10y=3

-y+5=3

-y= 3-5

-y=-2

y=2

value of y=2

put the value of y=2 in equation (3)...

x=-1+2y

=-1+2×2

=-1+4

=3

x= 3

the value of x =3

value of z is

z+2y =2

z+ 2×2=2

z+4=2

z=2 -4

z= -2

the value of z = -2