Solve 9-13-20=60quad45-18-17=10

$$9 - 13 - 20 = 60 \quad 45 - 18 - 17 = 10$$

Verify

Solution Steps

Subtract 13 from 9 to get -4.

$$-4-20=60\times 45-18-17\text{ and }60\times 45-18-17=10$$

Subtract 20 from -4 to get -24.

$$-24=60\times 45-18-17\text{ and }60\times 45-18-17=10$$

Multiply 60 and 45 to get 2700.

$$-24=2700-18-17\text{ and }60\times 45-18-17=10$$

Subtract 18 from 2700 to get 2682.

$$-24=2682-17\text{ and }60\times 45-18-17=10$$

Subtract 17 from 2682 to get 2665.

$$-24=2665\text{ and }60\times 45-18-17=10$$

Compare -24 and 2665.

$$\text{false}\text{ and }60\times 45-18-17=10$$

Multiply 60 and 45 to get 2700.

$$\text{false}\text{ and }2700-18-17=10$$

Subtract 18 from 2700 to get 2682.

$$\text{false}\text{ and }2682-17=10$$

Subtract 17 from 2682 to get 2665.

$$\text{false}\text{ and }2665=10$$

Compare 2665 and 10.

$$\text{false}\text{ and }\text{false}$$

The conjunction of \text{false} and \text{false} is \text{false}.

$$\text{false}$$