Final answer:
Wanda has 12 shirts and the equation is a=2b. To find how many shirts Will has, we substitute the value of a and solve for b.
Step-by-step explanation:
To find out how many shirts Will has, we need to solve the equation a = 2b where a represents the number of shirts Wanda has and b represents the number of shirts Will has.
Given that Wanda has 12 shirts (a = 12), we can substitute this value in the equation:
12 = 2b
To find b, we divide both sides of the equation by 2:
12/2 = b
b = 6
Therefore, Will has 6 shirts.