\[x+2y+2z=1\] |
\[x-y+3z=3\] |
\[x+11y-z=b\] |
A) \[(-7,-4)\]
B) \[\left( -4,0 \right)\]
C) \[\left( 0,3 \right)\]
D) \[\left( 3,6 \right)\]
Correct Answer: A
Solution :
\[x+2y+2z=1\] ?[a] \[x-y+3z=3\] ?[b] \[x+11y-z=b\] ?[c] From [a] and [b] \[z=2+3y\] and \[x=-8y-3\] Put in equation [c] \[\Rightarrow \,b=-5\]You need to login to perform this action.
You will be redirected in
3 sec