Question

Help any one I need help solving the system of equation.

x+y+z=11
y+z=10
z=6

Answer 1

$$x=1$$ $$z=6$$ $$y=4$$

Answer 2

Use Gaussian elimination

Answer 3

Hmm, i'm not sure what gaussiam elimination is but thank you!!!

Answer 4

x+y+z=11---------(1)
y+z=10-----------(2)
z=6--------------(3)

put z=6 in equation (2)

y+6=10
subtract both sides by '6'
y+6-6=10-6
y=4

put y and z in equation '1'

x+4+6=11
x+10=11
x=11-10
x=1