Hello!!
Well, the x-intercept is found when y = 0, so plug in y = 0:
-7x + 3(0) = 21
-7x = 21
x = -3
Therefore, the x-intercept of -7x + 3y = 21 is -3.
Hope this helps!! Let me know if you have ANY questions.
Step-by-step explanation:

The rate of the motorboat on still water is 1375

The current rate of the motorboat is 2025
Answer:
False
<em>Brainliest, please!</em>
Step-by-step explanation:
+ + = +
- - = +
+ - = -
- + = -
28 because you must subract 22 from both sides
Can you help me with my posted questions