# How do you evaluate 7( - 4) + 9( - 5)?

Mar 10, 2018

$- 73$

#### Explanation:

First, get the multiple values of the terms (solve the two terms beside the mathematical operation)

$7 \left(- 4\right) = - 28$

$9 \left(- 5\right) = - 45$

Then add these two terms since both are negative values. and add the $-$ sign in front of the answer because both the terms are negative.

$- 28 + \left(- 45\right) = - 73$

$\left(-\right) + \left(-\right) =$ add and put $\left(-\right)$ infront of the answer.
$\left(-\right) + \left(+\right) =$ subtract and put the sign of the highest term.

For example:

$\left(- 4\right) + 6 = 2$

(here $6 > 4$. Since $6$ has a $+$ sign, we put a $+$ sign for the answer)

$\left(- 6\right) + 4 = - 2$

(here $6 > 4$. Since $6$ has a $-$ sign, we put a $-$ sign for the answer)