The answer is x=-3 and y=13
We are given the following equation and want to find which value of x will make it true:

Subtract 3 from both sides

Divide both sides by -6

Thus, the value that will make 3-6x=21 is x=-3. Let me know if you need any clarifications, thanks!
~ Padoru
Use photo math :) and you will get your answer
Five names for -214 are negative 214, drop of 214, minus 214, below 214, and taking away 214.
Find the critical value or test statistic.

Find P(z > 2.25) using a normal distribution table
P(z > 2.25) = 0.0122