Solve (-8-1)*(3-(-7.2)div(-2.5+3)

$$(-8-1) \times (3-(-7.2) \div (-2.5+3)$$

Evaluate

$$-156.6$$

Solution Steps

Subtract 1 from -8 to get -9.

$$-9\left(3-\frac{-7.2}{-2.5+3}\right)$$

Add -2.5 and 3 to get 0.5.

$$-9\left(3-\frac{-7.2}{0.5}\right)$$

Expand \frac{-7.2}{0.5} by multiplying both numerator and the denominator by 10.

$$-9\left(3-\frac{-72}{5}\right)$$

Fraction \frac{-72}{5} can be rewritten as -\frac{72}{5} by extracting the negative sign.

$$-9\left(3-\left(-\frac{72}{5}\right)\right)$$

The opposite of -\frac{72}{5} is \frac{72}{5}.

$$-9\left(3+\frac{72}{5}\right)$$

Convert 3 to fraction \frac{15}{5}.

$$-9\left(\frac{15}{5}+\frac{72}{5}\right)$$

Since \frac{15}{5} and \frac{72}{5} have the same denominator, add them by adding their numerators.

$$-9\times \frac{15+72}{5}$$

Add 15 and 72 to get 87.

$$-9\times \frac{87}{5}$$

Express -9\times \frac{87}{5} as a single fraction.

$$\frac{-9\times 87}{5}$$

Multiply -9 and 87 to get -783.

$$\frac{-783}{5}$$

Fraction \frac{-783}{5} can be rewritten as -\frac{783}{5} by extracting the negative sign.

$$-\frac{783}{5}$$

Factor

$$-156.6$$