The equation of X divided by (x - 3) - 2 = m divided by (x - 3) is always used to find the value range of M

The equation of X divided by (x - 3) - 2 = m divided by (x - 3) is always used to find the value range of M

It should be: given that the equation x / (x-3) - 2 = m / (x-3) about X has a positive solution, find the value range of M?
Solution: multiply both sides of the equation by (x-3)
x-2*(x-3)=m
The solution is: x = 6-m, because the equation has a positive solution
So x > 0 means 6-m > 0 so m

Simple calculation of 19.9 + 29.9 + 39.9 + 49.9

=20-0.1+30-0.1+40-0.1+50-0.1=140-0.4=139.6

If 2x + 5Y = 3, then 4 ^ x * 32 ^ y = () is mainly how 32 ^ y equals 2 ^ 5Y

4^x*32^Y
=(2^2)^x * (2^5)^y
=2^2x*2^5y
=2^(2x+5y)
=2^3
=8

Negative 1 / 3 plus 1 / 4 minus 5 / 6 plus 3 / 7 equals
Give me a big score! There is also a supplement: 1 / 3-5 / 6 + 2 / 3-1 / 6 =?

-41/84 .0

It is known that the function f (x) is an increasing function in (- ∞, 2], and f (x + 2) is an even function on R. if f (a) ≤ f (3), then the value range of real number a is ()
A. A ≤ 1b. A ≥ 3C. 1 ≤ a ≤ 3D. A ≤ 1 or a ≥ 3

∵ f (x + 2) is an even function on R, ∵ f (x + 2) = f (- x + 2) ∵ the symmetry axis of F (x) image is x = 2, ∵ f (x) is an increasing function on (- ∞, 2], ∵ f (x) is a decreasing function on (2, + ∞),