Question

Solve algebraically:
x-3y-3z=0
2x+5y-5z=1
-x+5y-6z=-9

Answer 1

hey, this ques? :P

Answer 2

Yes

Answer 3

ok, this can be done by substitution method,
Find value of any variable, for ex: x from given 1st equation in terms of y and z (call this 'ur' 1st eqn)
then put in given 2nd equation and find value of y in terms of z.(call it 'ur' 2nd eqn)
Then put value of y in 'ur 1st' equation, you will get value of x also in terms of z
then put the values of both y and x in given 3rd eqn, solve it! you will get value of z
Put in the respective 'ur' 2 equations and u will get value of x and y also :D

Answer 4

See now here the solution becomes quite lengthy, right?
So you can use the alternate method! Wanna learn? :)

Answer 5

Yes!

Answer 6

ok

Answer 7

got my msg?

Answer 8

Yeah

Answer 9

I don't need this question answered anymore. My teacher excluded it from the lesson. thanks though :)

Answer 10

the alternate method basically is just like combination.

Answer 11

wanna learn or not? :P

Answer 12

btw ans is, x=3, y=0, z=1