X-243(54670+2345)=-13 854 645

To solve this equation, we first need to simplify the expression on the left side by performing the operations inside the parentheses:

54670 + 2345 = 57015

Now, we substitute the simplified expression back into the equation:

X - 243(57015) = -13,854,645

Next, we need to perform the multiplication:

X - 13,844,345 = -13,854,645

Now, to isolate X, we can add 13,844,345 to both sides:

X - 13,844,345 + 13,844,345 = -13,854,645 + 13,844,345 X = -10,000

Therefore, the solution to the equation is X = -10,000.