solve the equation 7+3m=28 .

Question

A.m=18
B.m=11 2/3
C.m=9
D.m=7

Answer 1

I think a

Answer 2

Answer a is not correct. Which value for m makes the equation correct?

Answer 3

Then its not 21 and 21 is the awnser for 3m

Answer 4

7+3m=28

Subtract 7 from both sides.

3m = 21

Divide both sides by 3

m = 21/3

m = ?

Answer 5

What I do is subtract the first number from the sum, 28-7=21 and go through the answer choices and multiply them by 3, since it is the number right next to m, and whatever gives you 21 is the answer. Example: 28-7=21, 18x3=54, so it's too much. Hope this helps!

Answer 6

Thanks miss sue you made it easier for me it is 7

Answer 7

Yay! You are welcome.

Answer 8

Thanks Ms. Sue! <3

Answer 9

Thank you miss sue