6.7×m^0.8-0.4355-m＝0

6.7×m^0.8-0.4355-m＝0

In the button click event, enter:
dim m!
for m=0.0000001 to 100 step 0.0000001
if 6.7×m^0.8-0.4355-m＝0 then
print m
exit for
end if
next m

The equation is composed of two parts x plus six parts x plus twelve parts x plus twenty parts x plus thirty parts x = 5

x/2+x/6+x/12+x/20+x/30=5
x(1/2+1/6+1/12+1/20+1/30)=5
x(3/6+1/6+1/12+1/20+1/30)=5
x(4/6+1/12+1/20+1/30)=5
x(8/12+1/12+1/20+1/30)=5
x(3/4+1/20+1/30)=5
x(15/20+1/20+1/30)=5
x(16/20+1/30)=5
x(8/10+1/30)=5
x(24/30+1/30)=5
x(5/6)=5
x=6

(x + 30) - (2x-210) = 0

（X+30)-(2X-210)=0X-2X+240=0X=240

The calculation of mathematical equations
(x + 2) ^ 2 (x-1) = 0 is this a univariate cubic equation?

Classification:
① If x + 2 = 0, then x = - 2;
② If X-1 = 0, then x = 1;
To sum up, x = - 2 or x = 1