Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

solve the system of equation 2x-y = 6 3y=6x-18

hartnn (hartnn):

divide both sides by 3 in 2nd equation 3y=6x-18 what u get ?

hartnn (hartnn):

any problems/doubts ?

OpenStudy (anonymous):

I got x=3

hartnn (hartnn):

how ? :O

hartnn (hartnn):

dividing 3y =6x -18 by 3, will give y = 2x - 6 got this ?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

oh then i divided 6 by 2 that s why i got -3

hartnn (hartnn):

plug this equation for y in your 1st equation plug y =2x-6 in 2x-y = 6 what u get ?

OpenStudy (anonymous):

2

hartnn (hartnn):

how ?

hartnn (hartnn):

|dw:1385832421029:dw| got that 6 ?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!