-6 plus 2f plus 3f equals 29
-6 + 2f + 3f = 29
-6 + 5f = 29
5f = 35
f = 7
It can be simplified to: 3f-7
(The equal sign = tells that you are on the other side of the equal sign.)2f+8=3f-6 You want to get the letters on one side.-2f=-2f (I put that equal sign to show that the -2f is on the other side.)8=f-6 3f-2f=f. And now, you want the numbers one just one side.+6=+6 You have to add to get rid of subtract.14=3f Now, you want to solve it by dividing.14/3=3f/3.......... _This line goes with the the answer. It shows that the 6 infinitely repeats. (7)Answers: f = 4.6 or or f = 6.67 or f = 4 2/3 or f = 14/3This is for if line seven (7) was unreadable. It says that the line goes with the answer and that it shows that the 6 infinitely repeats.
3f+9 = 23 3f = 23-9 3f = 14 f = 14/3 3f+9=23 -9 -9 3f= 14 /3 /3 f= 4.66666 (6 repeats)
If: -3f-14 = 1 Then: f = -5
-3f - 14 = 1 -3f = 1+14 -3f = 15 f = -5
3f - 2 = 4f + 5 You are looking for an unknown number, f. In the end, you want to know that f equals a specific number; the number on one side of the equation and f on the other. So first you want to get it in that format: -2 = 5 + 4f - 3f -2 - 5 = 4f - 3f Now solve: -7 = f You can see that f equals -7. This is what you're looking for.
A harmonic of a wave is a component frequency of the signal that is an integer multiple of the fundamental frequency. If the fundamental frequency is f, the harmonics have frequencies f, 2f, 3f, 4f, etc. Even harmonics are 2f, 4f, 6f, ... Odd harmonics are f, 3f, 5f, ... And remember: Even harmonics 2f, 4f, 6f,... are odd overtones. Odd harmonics f, 3f, 5f,... are even overtones. Scroll down to related links and look at "Calculations of harmonics from fundamental frequency".
F=3S (a father is 3 times as old as his son) F+15=2(S+15) (after 15 years the father will be twice as old as his sons age at that time) F/3=S F+15=2(F/3+15) F+15=2(F/3)+2(15) F+15=(2F)/3+30 F+15(-15)=(2F)/3+30(-15) F=(2F)/3+15 F(3)=(2F)/3+15)(3) 3F=2F+45 3F(-2F)=2F+45(-2F) F=45