algebra help please

Question

Tyler has two savings accounts that his grandparents opened for him. One of the accounts pay 6%annual interest, whereas the other pays 7%annual interest. If you have $700 more invested at 7%than you invested at 6%, how much do you have invested in each account if the total amount of interest you earn in a year is $101?

Answer 1

0.06x + 0.07(x + 700) = 101; 0.13x = 101 - 49; 0.13x = 52; x = $400 on 6% account;

x + 700 = 400 + 700 = $1100 on 7% account;