Basic Math Examples

$- 93$ , $- 36$ , $- 38$ , $43$ , $13$ , $- 57$ , $- 21$

Step 1

The mean of a set of numbers is the sum divided by the number of terms.

$\frac{- 93 - 36 - 38 + 43 + 13 - 57 - 21}{7}$

Step 2

Simplify the numerator.

Tap for more steps...

Step 2.1

Subtract $36$ from $- 93$ .

$\frac{- 129 - 38 + 43 + 13 - 57 - 21}{7}$

Step 2.2

Subtract $38$ from $- 129$ .

$\frac{- 167 + 43 + 13 - 57 - 21}{7}$

Step 2.3

Add $- 167$ and $43$ .

$\frac{- 124 + 13 - 57 - 21}{7}$

Step 2.4

Add $- 124$ and $13$ .

$\frac{- 111 - 57 - 21}{7}$

Step 2.5

Subtract $57$ from $- 111$ .

$\frac{- 168 - 21}{7}$

Step 2.6

Subtract $21$ from $- 168$ .

$\frac{- 189}{7}$

Step 3

Divide $- 189$ by $7$ .

$- 27$