Which of the following ordered pairs represents the solution to the system given below? can someone help me with this pleases , i don't know how to do this. x − 4y = 7 5x + 9y = 6
i will give a medal to whoever helps me with this and a fan
@Hotchellerae21 @marvin456 @sarimari @lordhelix8th
can you guys help me please
you have to get x by itself and then put 5(4y+7)+9y =6
Y= (-2) and X=(-6)
these are the options (3, −1) (3, 1) (1, −3) (−1, −3)
are you guys still there
29y=-29 then do the rest of the problem by your self
Are you allowed to use a calculator?
yes
ok we can graph the two equations, and find their intersection point http://www.wolframalpha.com/input/?i=graph+x+%E2%88%92+4y+%3D+7%2C+5x+%2B+9y+%3D+6
if we did it my way then there will be no need for that
thank you so much !!
-1,3
3 -1
I put it backwords sorry
yes that is correct http://www.wolframalpha.com/input/?i=solve+x+%E2%88%92+4y+%3D+7%2C+5x+%2B+9y+%3D+6
no worries ☺
thanks again @peral and @Revan_Malak
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