\(|x|-\dfrac{3}{5}=\dfrac{5}{9}\)
\(|x|=\dfrac{5}{9}+\dfrac{3}{5}\)
\(\Rightarrow x=\dfrac{52}{45};\dfrac{-52}{45}\)
\(|x|-\dfrac{3}{5}=\dfrac{5}{9}\)
\(|x|=\dfrac{5}{9}+\dfrac{3}{5}\)
\(\Rightarrow x=\dfrac{52}{45};\dfrac{-52}{45}\)
( Câu hỏi dễ nà trả lời nhanh , đúng mik sẽ tick cho :3 )
a ) 3/5 . 4^x = 3/5 . 4^5
b ) 5 . 3^x+6 = 2 . 3^5 + 3 . 3^5
Tìm số hữu tỉ x biết:
a) \(3\cdot x-1^4=81\)
b) \(\left(x+1\right)^5=-32\)
c) \(\left(5\cdot x-1\right)^6=729\)
d)\(\left(2\cdot x+1\right)^3=0,001\)
e) \(\left(2\cdot x-3\right)^{^{ }4}=\left(2\cdot x-3\right)^6\)
g) \(\left(2\cdot x+1\right)^5=\left(2\cdot x+1\right)^{2020}\)
giúp mk nha mk tick cho chiều đi học rùi
a ) 4 . 3^x-1 + 2 . 3^x+2 = 4 . 3^6 + 2 . 3^9
b ) 5^x+4 - 3 . 5^x+3 = 2 . 5^11
c ) 11 . 6^x-1 = 11 . 6^11 + 2 . 6^13
Tìm x biết
a) 2/3+ 7/4 : x = 5/6
b) (x + 5/3) . (x - 5/4)= 0
c) (x- 1,2)^2 = 4
d) (x +1)^3 = -125
Tìm x biết:
1)25/12x+11/15=9/10
2)3/2x-2/5=1/3x-1/4
3)29/12[x]-5/6=3/8
4)[4x+3/4]-5/4=2
5)2x+2x+3=144
Tìm x biết
1)1/4+1/3:1/2x=-5
2)-4/5-2/3:x=-5/12
tìm x biết
a)3/4+1/4:x=2/5
b)x/-2=-8/x(x khác 0)
c)(x-1)/5=20/x-1
d)(x-3/5)^2=4
\(\dfrac{5^5}{5^x}=5^{18}\)
\(\dfrac{x-7}{6}=\dfrac{3}{2\left(x-7\right)}\)
bài 2
q,\(\frac{11}{3}-\left(\frac{5}{42}-x\right)\)
b,\(x+\frac{1}{3}=\frac{2}{5}-\left(\frac{-1}{3}\right)\)
c,\(\frac{-2}{3}x+\frac{5}{7}=\frac{3}{10}\)
d,\(\frac{3}{7}-x=\frac{1}{4}-\left(\frac{-3}{5}\right)\)