25 - 13f = -14 25 - 13f = -14 -25 -25 =0 = -39 -13f = -39 -13/-13 = 1 -39/-13 = 3 f = 3
You've given the answer yourself. d=6 and f=3.
If: df+10f = 3 Then: f(d+10) = 3 And: d = 3/f -10
The idea is to replace every "x" by "3", and then do the calculations.
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
25 - 13f = -14 25 - 13f = -14 -25 -25 =0 = -39 -13f = -39 -13/-13 = 1 -39/-13 = 3 f = 3
26
-2
-13 degrees F equals -25 degrees C
13 Stripes on the American Flag
56.5% or F
You've given the answer yourself. d=6 and f=3.
1x13=13
f = 54
It is: 16-3 = 13
3+4+6 easily equals 13. There is a few ways to do it. 3+4 equals seven. Then add 6 and you get 13. 3+6 equals nine. Then add 4 and you get 13. 4+6 equals ten. Then add 3 and you get 13.
If: df+10f = 3 Then: f(d+10) = 3 And: d = 3/f -10