\(75\%x-x=1-\frac{3}{4}\)
\(\Rightarrow\frac{75}{100}.x-x=\frac{1}{4}\)
\(\Rightarrow\frac{3}{4}x-x=\frac{1}{4}\)
\(\Rightarrow x.\left(\frac{3}{4}-1\right)=\frac{1}{4}\)
\(\Rightarrow x.\frac{-1}{4}=\frac{1}{4}\)
\(\Rightarrow x=-1\)
tìm x:
a) 1/2.x+3/5.(x-2)= 3
b)1/3.x-0,5.x= 0,75
c)3/-2.x-0,5.x=75%
d)-2/5.x+1/4=75%-3/4.x
tim x
1/3 x X + 3/4 x X - 75% = -21 / 4
1/3*x+3/4*x-75%=-51/4
25 . 15 + 75 . 45
-10 . 25 - 10 . 75 + 10 . 50
3^x-2 - 2^3 = 19
(2 x - 5)^3 = - 64
2(x-1)^2 + 3 = 35
125 - 25 (x + 3) = 50
2(x+ 3) - 1x = 4
Bài 4:tìm x
a.7x-x=5^21:5^19+3.2^2.7
b.11x-7x+3^4:3^3=5^4+2x
c.75-5.(x-3)^3=700
d.3.(2x-1)^2=75
e.3^x+3^x+2=270
f.3^x-3-3^2=2.3^2
Cảm ơn các bản !
\(\frac{1}{3}x+\frac{3}{4}x-75\%=-5\frac{1}{4}\)
(3 3/4×x+75%)÷2/3=-1
75%-1 1/2.4/3+1,5:-9/4
(1 1/2+x).1 3/4++=8/7
|x-1!=3/5
