I need help can someone please help me please and thank you ( I’m timed ) !!!

Find a number such that if you add 8 and divide the result by 4 you will get the same answer as if you subtracted 3 from the original number and divided by 2

The verbal translation for the difference of m and 7 increased by 15

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?