Algebra Examples

$2 r + 1 + (- 4 r) + 7$

Step 1

Remove parentheses.

$2 r + 1 - 4 r + 7$

Step 2

Subtract $4 r$ from $2 r$ .

$- 2 r + 1 + 7$

Step 3

Add $1$ and $7$ .

$- 2 r + 8$

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