Tìm x:
5x + x = 150 : 2 + 3
x(5+1) = 75+3
6x=78
x=78:6
x=13
\(5x+x=150:2+3\)
\(\Leftrightarrow6x=75+3=78\)
\(\Leftrightarrow x=\frac{78}{6}\)
\(\Leftrightarrow x=13\)
Tìm x:
5x + x = 150 : 2 + 3
x(5+1) = 75+3
6x=78
x=78:6
x=13
\(5x+x=150:2+3\)
\(\Leftrightarrow6x=75+3=78\)
\(\Leftrightarrow x=\frac{78}{6}\)
\(\Leftrightarrow x=13\)
Tìm x:
5x + 5 = 150 : 2 + 3
Help me!
Tìm x :
a) ( x - 5 ) . ( x + 4 ) = 0
b) \(x^2-7x=0\)
c) \(x^2=-5x\)
d) \(x^3=x\)
Help me!
Tìm x,biết :
( 2^3+4^2). x + 2^5 . 5x = 100
Tìm x :
\(\frac{7x+2}{5x+7}=\frac{7x-1}{5x+1}\)
1.Tìm x thuộc Z.Biết:
a) 2. I x - 6 I +7x - 2 = I x - 6 I + 7x
b) I x + 8 I +5 . (x-2)= 5x - 10 : 2
Tìm x
1/2x+3/5x=-2/3
Tìm x biết:
a. 1/3 + 1/6 + 1/12 + ... + 2/x(x+1) = 2001/2003
b. |x + 1| + |x - 2| + |x + 7| = 5x - 10
c. |x2 - 2| + |2 - x2| = 14
tìm x
a, 100-7(x-5)=31+3 mũ 3
b, 12(x-1) : 3 = 4 mũ 3 + 2 mũ 3
c, 24+5x=7 mũ 5 : 7 mũ 3
5x-206 = 2 mũ 4 . 4
125=x mũ 3
64=x mũ 2
giúp mik nha!!!!!!!!!!!!!
tìm x:
bằng cả 2 cách nhé
a)/5x-4/=/x+2/
b)/2+3x/=/4x-3/