250+X=530-45

To solve the equation \(250 + X = 530 - 45\), first simplify the right side: \[ 530 - 45 = 485. \] Now, the equation becomes: \[ 250 + X = 485. \] Next, isolate \(X\) by subtracting 250 from both sides: \[ X = 485 - 250. \] Calculating the right side: \[ X = 235. \] So, the solution is: \[ X = 235. \]