Question

z-x=20,x+y=160,y+z=180 then what are the values of x,y and z​

Answer 1

Answer:

infinitely many solutions

Answer 2

z=20+x

x=160-y

y=180-z

z-x=20

substitute the values of z and y

20+x-160-y=20

-140+x-y=20

-160+x-y=0

x-y=160

x+y=160 (i)

x-y=160 (ii)

Using substitution method

x=160-y

Substitute x in eq (ii).

160-y-y=160

160-2y=160

-2y=0

y=0/-2=0

x=160-y

=160-0

=160

z=20+x

=20+160

=180

x=160

y=0

z=180