Final answer:
To solve the problem, set up an equation x - 7 = 29 and solve for x.
Step-by-step explanation:
To solve this problem, we need to set up an equation using the given information. We know that Julia bought a crate of fruit containing x mangoes, and she ate 7 of them. After eating, she had 29 mangoes left. This can be represented by the equation:
x - 7 = 29
To find the value of x, we need to isolate it on one side of the equation. We can do this by adding 7 to both sides:
x - 7 + 7 = 29 + 7
This simplifies to:
x = 36
Therefore, Julia originally bought 36 mangoes.