Basic Math Examples

$- r + 4 - 2 + r$

Step 1

Combine the opposite terms in $- r + 4 - 2 + r$ .

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Step 1.1

Add $- r$ and $r$ .

$0 + 4 - 2$

Step 1.2

Add $0$ and $4$ .

$4 - 2$

$4 - 2$

Step 2

Subtract $2$ from $4$ .

$2$

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