Answer:
Equation: 4x = 52
Average price of shirt: $13
Step-by-step explanation:
Let x = the average price of a shirt
She bought 4 shirts, so she paid 4x for the 4 shirts.
We are told she paid $52 for the 4 shirts, so 4x must equal $52.
That gives us the equation:
4x = 52
We want to find x. We have 4x. Since x is being multiplied by 4, we need to divide 4x by 4. The rule with equations is that you must do the same operation to both sides, so we divide both sides of the equation by 4.
4x/4 = 52/4
x = 13
Average price of shirt: $13