Answer:
40
Step-by-step explanation:
38 miles per hour
<em>Simple just divide 342/9 to get 38</em>
x = 0
Given
9 + 5x = 9 + 2x ( subtract 2x from both sides )
9 + 3x = 9 ( subtract 9 from both sides )
3x = 0 ⇒ x = 0