Algebra Examples

$11 - 2 m - n + 5 + - m - 3 n + 8$

Step 1

Replace all occurrences of $+$ $-$ with a single $-$ . A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because $1 \cdot - 1 = - 1$

$11 - 2 m - n + 5 - m - 3 n + 8$

Step 2

Add $11$ and $5$ .

$- 2 m - n + 16 - m - 3 n + 8$

Step 3

Subtract $m$ from $- 2 m$ .

$- 3 m - n + 16 - 3 n + 8$

Step 4

Subtract $3 n$ from $- n$ .

$- 3 m - 4 n + 16 + 8$

Step 5

Add $16$ and $8$ .

$- 3 m - 4 n + 24$