Chemistry Examples

$5 x + - 3 x + - 5$

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 $1 \cdot - 1 = - 1$

$5 x - 3 x - 5$

Step 2

Subtract $3 x$ from $5 x$ .

$2 x - 5$