You see how many times 10 goes into 290 which equals 29. So take 29 and multiply it by 6 and that equals 174. Which means there will need to be 174 computers for the 290 students.
The way to find an unknown is to isolate it. n+14(-14)=15(-14) n=1 Then we can check our answer by plugging it into the equation. 1+14=15 15=15 So n=1.
