Wanda has three times more shorty than her brother will
The equation a=3b where a represents the number of shirts Wanda has and b represents the number of shirts will has shows this relationship
If Wanda has 21 shirts how many shirts does will have
If Wanda has 21 shirts, we can substitute this value into the equation a=3b to find the number of shirts Will has.
a = 3b
21 = 3b
b = 21 / 3
b = 7
Therefore, Will has 7 shirts.