Answer:
Real-world problem using the equation x + 287 = 594...
Let's suppose you have $287 dollars in your bank account. You deposit a check and afterwards have $594 in your account. How much was the check worth?
You can then find the answer by solving for x:
594 - 287 = x
594 - 287 = 307
x = 307
So the check was worth $307!