First add 7d to both sides: -22 = 11d Now divide by 11 both sides -2 = d
You can work on either side of the equation, I used the right side for the variables because it was easier to add to positive numbers than dealing with negative numbers on the left side: -7d -4d = 22 -11d =22 d = -2
Divide 48 by 3 which gives you the total amount for one bracelet then you have to multiply the amount by 9 and 13 and then find your answer in the letters.