Here's some other stuff we never learned in class:

Question

7e-2=47 e=_____ 1/3g=8 g=_____ 5b+1=46 b=______
I don't know how to work them! Please explain as well.

Answer 1

I'll do the first one.

7e-2=47

You need to get the knowns on one side and the unknowns on the other side.

Add 2 to both sides of the equation.

7e = 47 + 2
7e = 49

Divide both sides by 7.

e = 49/7
r = 7

Please follow the above directions and post what you think are the answers for the other two problems. I'll be glad to check them.

Answer 2

So e=7? (I know, e and r are next to eachother!)

Answer 3

Oops -- I have a typo. e = 7

Sorry.

Answer 4

9. 5b+1=46

46+1=47
47/
And then I get stuck. All the problems are different so do the same rules apply?

Answer 5

Subtract 1 from both sides.

5b = 45

Answer 6

46-1=45
45/5=9
b=9?
P.S My great grandma got home safely 

Answer 7

You're right. And I'm glad your great grandma is o.k. :-)

Answer 8

What about 1/3g=8?

Answer 9

1/3g=8

g = 8 / (1/3)

g = 8 * (3/1)

g = 24