Juli correctly combined all like terms in the expression 5X +6 minus 4Y -3+ 3X -22 Rattlesnake Wayvland expression what is the coefficient for the X terms in the equivalent expression

Last year, laura had $30,000 to invest. she invested some of it in an account that paid 7% simple interest per year, and she invested the rest in an account that paid 8% simple interest per year. after one year, she received a total of $2230 in interest. how much did she invest in each account?