<h2><u>Correct question</u> : 4x - 3 = 2x + 7 </h2>
<h2><u>Solution</u> : 4x - 3 = 2x + 7 </h2>

<h2>•••••••••••••••••••••••••••••••••••••••</h2>
<h2><u>Correct Question</u> : 2x + 6 = 7x - 14</h2>
<h2><u>Solution</u> : 2x + 6 = 7x - 14</h2>

We calculate both velocities:
upstream 8 miles in 2 hours = 4 miles / hour
downstream 8 miles in 1 hour = 8 miles / hour
ps -stream speed = 4 mph
ps + stream speed = 8 mph
Adding both equations
2 ps = 12 mph
paddling speed = 6 mph
stream speed = 2 mph
I’d say the second one, the fourth one and the fifth one.
Hope it works :)
Answer:
42 quarts
Step-by-step explanation:
Answer:
-8n + 9
Step-by-step explanation:
Given that,
A = -3n + 2
B = 5n - 7
Before solving you have to know that,
( + ) × ( + ) = ( + )
( - ) × ( - ) = ( + )
( + ) × ( - ) = ( - )
Let us solve now.
A - B
-3n + 2 -(5n - 7)
-3n + 2 - 5n + 7
Combine like terms
-3n - 5n + 2 + 7
-8n + 9
Hope this helps you.
Let me know if you have any other questions :-)