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?
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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.
Solve this equation for m.
830 - 60*m = 970 - 80*m
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ok i think i got it is this it?
830 + -60m = 970 + -80m
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
Which website is that from? There is mathpapa.com and one with a pirate. I'm just wondering.
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
Thanks. The site I used did not allow for copying and pasting. So, I've been looking for something better.
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