Answer: The value of x is = 5.
Step-by-step explanation:
So we are given the equation:
3x + 7 = 22
We just have to isolate 3x and move 7 to the other side:
3x = 22 -7
3x = 15
Now divide:
x = 15/3
x = 5
There you go!
Answer:

Step-by-step explanation:
10 * sqrt(81/25 * -1) = 10 sqrt(81/25) * sqrt(-1) = 10 *9/5 * i
Answer:
15
Step-by-step explanation:

Answer:
i don't know this answer but i do know something about math i know a square plus b square = c square
Step-by-step explanation: