(x+40)•56=555

To solve the equation \((x + 40) \cdot 56 = 555\), follow these steps:

1. Divide both sides by 56 to isolate \(x + 40\):

   \[ x + 40 = \frac{555}{56} \]

2. Calculate \(\frac{555}{56}\):

   \[ \frac{555}{56} \approx 9.910714285714286 \]

   (You can keep the fraction for more accuracy, or you can round it as needed).

3. Now, solve for \(x\) by subtracting 40 from both sides:

   \[ x = \frac{555}{56} - 40 \]

4. To proceed with the subtraction, convert 40 to have a common denominator:

   \[ 40 = \frac{40 \cdot 56}{56} = \frac{2240}{56} \]

5. Now, substitute back into the equation:

   \[ x = \frac{555}{56} - \frac{2240}{56} \]

6. Combine the fractions:

   \[ x = \frac{555 - 2240}{56} = \frac{-1685}{56} \]

7. You can simplify this fraction, if needed, or convert to decimal:

   \[ x \approx -30.125 \]

Thus, the solution is:

\[ x = \frac{-1685}{56} \quad \text{or approximately} \quad -30.125 \]