Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (aaronandyson):

a + 2b = 7 3a - 4b = 6 Find a and b

OpenStudy (anonymous):

Systems of Equations. You can do substitution or elimination

OpenStudy (anonymous):

(Elimination would probably be easiest for this), your call.

OpenStudy (aaronandyson):

is a = 4?

OpenStudy (anonymous):

Hold on, i'll check.

OpenStudy (anonymous):

5a = 20, a is equal to 4. You are correct! :)

OpenStudy (aaronandyson):

and y is 3/2?

OpenStudy (anonymous):

Now you can just substitute "A" back into the equation to find "B"! :D

OpenStudy (anonymous):

Yes, y = \[\frac{ 3 }{ 2 }\]

OpenStudy (aaronandyson):

Thanks.

OpenStudy (anonymous):

Well, b = 3/2. haha

OpenStudy (anonymous):

Np xD

OpenStudy (aaronandyson):

lo! yes my error :P

OpenStudy (aaronandyson):

XD Thanks

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!