Basic Math Examples

$r + 7 r - r + 5 r + 4 r + 3 r$

Step 1

Combine the opposite terms in $r + 7 r - r + 5 r + 4 r + 3 r$ .

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Step 1.1

Subtract $r$ from $r$ .

$7 r + 0 + 5 r + 4 r + 3 r$

Step 1.2

Add $7 r$ and $0$ .

$7 r + 5 r + 4 r + 3 r$

Step 2

Add $7 r$ and $5 r$ .

$12 r + 4 r + 3 r$

Step 3

Add $12 r$ and $4 r$ .

$16 r + 3 r$

Step 4

Add $16 r$ and $3 r$ .

$19 r$