Home > MC1 > Chapter 5 > Lesson 5.1.2 > Problem5-19

5-19.

Simplify each expression.

1.   $\frac { 3 + ( - 7 ) } { - 2 }$

Simplify the numerator first.

$\frac{3\;+\;(-7)}{-2}\;=\;\frac{-4}{-2}$

Next, divide the numerator by the denominator.

$\frac{-4}{-2}\;=\;2$

$2$

1.   $\frac { 4 - 16 } { - 2 ( - 2 ) }$

Follow the same steps as in part (a). Remember to simplify both the numerator and the denominator before dividing.

1.   $5 \left(2 + \left(−9\right)\right) + −25$

Remember to work from within the parentheses outward.

$−60$

1.   $−3\left(4\right) + 5\left(4\right) −2\left(7\right)$

Make sure to compute each term before adding.