Finite Math Examples

$- 9 > b - 9$

Step 1

Rewrite so $b$ is on the left side of the inequality.

$b - 9 < - 9$

Step 2

Move all terms not containing $b$ to the right side of the inequality.

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Step 2.1

Add $9$ to both sides of the inequality.

$b < - 9 + 9$

Step 2.2

Add $- 9$ and $9$ .

$b < 0$

Step 3

Convert the inequality to interval notation.

$(- \infty, 0)$

Step 4