Solve for m: 18d – 2m + 9k -7k-9d+5 B:m2k+9d-5 D:m

Question

Solve for m: 18d – 2m + 9k < 5k + 10. A:m>-7k-9d+5 B:m<-7k+9d+5 C:m>2k+9d-5 D:m<2k+9d-5 CAN SOMEONE PLEASE HELP E WITH THIS?

phebe · Answer

What do you think the answer is?

abdullahm · Answer

Hi, welcome to OpenStudy.

Do you know how to move the other terms to one side so that way you can isolate the variable m?

anonymous · Answer

No i'm new to this algebra stuff lol

abdullahm · Answer

18d – 2m + 9k < 5k + 10

Ok, we have 3 variables. Do you see them? What are the 3 variables?

anonymous · Answer

The three variables are 2m,9k,5k I think.....

abdullahm · Answer

The variables are m, k, and d. The numbers infront of them are called coefficients.

anonymous · Answer

OK so do I have to add or subtract the variables?

abdullahm · Answer

So, lets move some variables around to get your answer :)

18d – 2m + 9k < 5k + 10

What happens if we want to move 9k to the left side? Do we have to subtract or add 9k on both sides to remove it?

anonymous · Answer

We would have to subtract

abdullahm · Answer

Correct!

So, lets do it.

18d – 2m + 9k -9k < 5k + 10 -9k

Simplify that.

anonymous · Answer

18d-2m<5k+10-9k 

I'm not that good at math sorry :(

abdullahm · Answer

You're doing good so far!

anonymous · Answer

Thank you

abdullahm · Answer

Ok, now lets move the 18d on both sides:

18d-2m<5k+10-9k 

Should we add or subtract it? :)

anonymous · Answer

We would subtract

abdullahm · Answer

Correct!

So now we have:

18d -18d -2m<5k+10-9k -18d

Simplify it :)

anonymous · Answer

-2m<5k+10-9k-18d

abdullahm · Answer

Great! Now we have to divide by -2 on both sides.

anonymous · Answer

So it will be -2m<5k+5-9k-9k

I think I don't know