x + 4 = 15
- 4 -4
x = 11
You would subtract 4 because you need to isolate the x to get the value of x. You would subtract it to both sides because whatever you do on one side, you have to do it to the other side.
Answer:
c is the answer
Step-by-step explanation:
3(2(5)+4)-5
3(10+4)-5
30+12-5
42-5
37
