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Mathematics 30 Online
OpenStudy (anonymous):

Find x - 3y if x = 3 and y = -2.

OpenStudy (anonymous):

3-(2) basically

OpenStudy (anonymous):

A. -9 B. -3 C. 3 D. 9

OpenStudy (anonymous):

Those are my options

OpenStudy (anonymous):

3-3(-2) Use arithmetic and solve, remember order of operations

OpenStudy (anonymous):

Arithmetic???

OpenStudy (anonymous):

yes addition subtraction multiplication division

OpenStudy (anonymous):

Basically PEMDAS?

OpenStudy (anonymous):

yes you got it

OpenStudy (anonymous):

I got 3.

OpenStudy (anonymous):

no try again when you multiply a negative times a negative what happens to the sign?

OpenStudy (anonymous):

-3*-2=?

OpenStudy (anonymous):

It becomes positive

OpenStudy (anonymous):

correct so -3(-2) is what?

OpenStudy (anonymous):

6??????

OpenStudy (anonymous):

yes correct so the equation becomes 3+6=?

OpenStudy (anonymous):

9

OpenStudy (anonymous):

good job, that's it

OpenStudy (anonymous):

Thanks alot :)

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