Let

Then it can be shown by using a right-angled triangle and the rule of Pythagoras that

Therefore
Plug in 7 for x:
2(7) + 3 =
Solve:
14 + 3 = 17
7 is a true answer for x
Answer:
Same bro its mad hard and you know what... We're on this boat together
In a word problem, it might not be clear which operation the problem is asking you to do. But, 3 key words from which you know the problem is asking you to add are: increase, together, and gained. Though these are not all of them, these are some of the (arguably) most important ones.