Solve {l}{-5+8+2-9=-4}{+10-20-15=-2}

$$\left. \begin{array} { l } { - 5 + 8 + 2 - 9 = - 4 } \\ { + 10 - 20 - 15 = - 2 } \end{array} \right.$$

Verify

Solution Steps

Add -5 and 8 to get 3.

$$3+2-9=-4\text{ and }10-20-15=-2$$

Add 3 and 2 to get 5.

$$5-9=-4\text{ and }10-20-15=-2$$

Subtract 9 from 5 to get -4.

$$-4=-4\text{ and }10-20-15=-2$$

Compare -4 and -4.

$$\text{true}\text{ and }10-20-15=-2$$

Subtract 20 from 10 to get -10.

$$\text{true}\text{ and }-10-15=-2$$

Subtract 15 from -10 to get -25.

$$\text{true}\text{ and }-25=-2$$

Compare -25 and -2.

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

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

$$\text{false}$$