Molly invested $12,000 in an account with an interest rate of 6%. what is the amount in molly's account after 6 years if the interest was compounded annually? a) $5,022.23b) $17,022.23c) $22,044.46d) $170,222.26

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

step-by-step explanation: