Question

Marie has $830 in her bank account and withdraws $60 each month. Denise has $970 in her bank account and withdraws $80 each month.

In how many months will Marie and Denise have equal amounts of money in their accounts?

A. 4

B. 5

C. 7

D. 9

Answer 1

Marie has 830 and removes 60 per month.

830 - 60*m is the amount Marie has after m months

Denise has 970 and removes 80 per month.

970 - 80*m is the amount Denise has after m months.

Answer 2

@raventayler13

Solve this equation for m.

830 - 60*m = 970 - 80*m

Answer 3

Post what you get, okay?

Answer 4

ok i think i got it is this it?

Simplifying
830 + -60m = 970 + -80m

Solving
830 + -60m = 970 + -80m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '80m' to each side of the equation.
830 + -60m + 80m = 970 + -80m + 80m

Combine like terms: -60m + 80m = 20m
830 + 20m = 970 + -80m + 80m

Combine like terms: -80m + 80m = 0
830 + 20m = 970 + 0
830 + 20m = 970

Add '-830' to each side of the equation.
830 + -830 + 20m = 970 + -830

Combine like terms: 830 + -830 = 0
0 + 20m = 970 + -830
20m = 970 + -830

Combine like terms: 970 + -830 = 140
20m = 140

Divide each side by '20'.
m = 7

Answer 5

Yes.

Which website is that from? There is mathpapa.com and one with a pirate. I'm just wondering.

Answer 6

http://www.geteasysolution.com
i like this website for these things when there's an ='s involved with something on the both sides i go to this site. @Directrix

Answer 7

Thanks. The site I used did not allow for copying and pasting. So, I've been looking for something better.

Answer 8

oh well this is better but not all math problems can be solved on this site so i use 2 sites that one and https://mathway.com/ to solve problems. @Directrix

Answer 9

I'll check it, too. Thanks.

Answer 10

welcome