Pre-Algebra Examples

$- 55 n + 28 n + 21 n + 7 n - n$

Step 1

Add $- 55 n$ and $28 n$ .

$- 27 n + 21 n + 7 n - n$

Step 2

Add $- 27 n$ and $21 n$ .

$- 6 n + 7 n - n$

Step 3

Add $- 6 n$ and $7 n$ .

$n - n$

Step 4

Subtract $n$ from $n$ .

$0$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$