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Mathematics 9 Online
OpenStudy (anonymous):

Solve the system by elimination.

OpenStudy (anonymous):

OpenStudy (anonymous):

Can anyone Please Help

OpenStudy (anonymous):

A bit too long.

OpenStudy (anonymous):

How?

OpenStudy (anonymous):

add eqn 2 + eqn 3 2x - y + 5z = -9 + 2x - 10y - 5z = 0 = 4x - 11y = -9

OpenStudy (anonymous):

4x = 11y - 9 x = 11y - 9/4

OpenStudy (anonymous):

substitute in eqn 3

OpenStudy (anonymous):

Which one would it be out of all the choices

OpenStudy (anonymous):

first follow the method , otherwise how will u get the answer ??

OpenStudy (anonymous):

I really don't got time to take 30 min on 1 question, if you can please just tell me which of the answers it is ill appreciate it.

OpenStudy (anonymous):

@azureilai Can you help

OpenStudy (anonymous):

@rockstargirl17 Can you help

OpenStudy (anonymous):

ITS (-5,-1,0)

OpenStudy (anonymous):

Thanks

OpenStudy (anonymous):

Can you help me with one more please

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

OpenStudy (anonymous):

it's b(-8,-7,5)

OpenStudy (anonymous):

Thanks, Can you check my answer below.

OpenStudy (anonymous):

thats right

OpenStudy (anonymous):

6*1.5+3*3+2*1.5 = 21

OpenStudy (anonymous):

Are you sure that the other 2 are correct if they are ill Fan you and medal best response. Thanks for your help

OpenStudy (anonymous):

yes, when u substitute the points for the equation, thats gives u the right answer.. i used substitution instead of elimination, sicne the points are already given

OpenStudy (anonymous):

i can double check it if u want me to

OpenStudy (anonymous):

Its cool, i just wanted to know if the first 2 were correct.

OpenStudy (anonymous):

I double checked them just incase, and they are right

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