Question

Solve
-21 = -9 + 2/3b

Answer 1

Final Answer:
`b = -18`

Steps/Reasons/Explanation:

Question: Solve
`-21 = -9 + (2)/(3)b`.

Step 1: Simplify
`(2)/(3)b` to
`(2b)/(3)`.

`-21 = -9 + (2b)/(3)`

Step 2: Regroup terms.

`-21 = (2b)/(3) - 9`

Step 3: Add
`9` to both sides.

`-21 + 9 = (2b)/(3)`

Step 4: Simplify
`-21 + 9` to
`-12`.

`-12 = (2b)/(3)`

Step 5: Multiply both sides by
`3`.

`-12` ×
`3 = 2b`

Step 6: Simplify
`-12` ×
`3` to
`-36`.

`-36 = 2b`

Step 7: Divide both sides by
`2`.

`-(36)/(2) = b`

Step 8: Simplify
`-(36)/(2)` to
`-18`.

`-18 = b`

Step 9: Switch sides.

`b = -18`

~I hope I helped you :)~