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Mathematics 23 Online
OpenStudy (anonymous):

If x = 4 in this equation, what does y equal? 5x + 8y = 4 a. y= 2 b. y= 4 c. y= -2 d. y= -4

OpenStudy (holly00d1248):

C

OpenStudy (anonymous):

Do you know how to create a problem to solve for it?

OpenStudy (anonymous):

yeah.. you plug in x with 4 and see what plugs in to y

OpenStudy (anonymous):

Yeah and then just solve for y :P

OpenStudy (anonymous):

So its just like a normal linear equation!

OpenStudy (anonymous):

I already tried and got 20 + 8y = 4 and it doesnt work

OpenStudy (anonymous):

Do you know how to isolate a variable?

OpenStudy (anonymous):

yes..

OpenStudy (anonymous):

That is what you have to do with y. Its like solve for x. Except for y is the x

OpenStudy (anonymous):

k thx

OpenStudy (anonymous):

Did you solve for the answer?

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