Question

(i) x + y + z = 89
y = 3Z
x=Z-6
Solve the system of linear equation in three variable plz urgent guys​

Answer 1

Answer:

32

Step-by-step explanation:

x+y+z=89

y=3z

x=z-6

soln:

x+y+z=89........(eqn 1)

sub y and z value in eqn 1

z-6+3z+z=89

3z-6=89

3z=89+6

z=95÷3

z=31.666

z=32