Question

Rezolvații în Q ecuațiile : a) x supra 3 = -1 supra 2
b) x+ 1 supra 2 = -5 supra 3
c) X supra 2 = x +1 supra 3
d) X + 2x =5
e) 3x-X = 0,2
f) 2 (x+1)-3=2
g) x- 1 supra 3 = 2x
h) 4x -1 =3x-X + 2 supra 3x + 2 supra 3
i) 3 supra 4 x - 1 supra 2 = 2x +0,7
j) 4x -5 totul supra 3 = 2 x + 1 supra 6
k) x supra 2 + 5 x supra 3 = 1,5
l) 4+x =x supra 3
dau coroanaaa, heeelp

Answer 1

$a)  \frac{x}{3} = \frac{-1}{2}  => x=\frac{-3}{2} \\\\b) \frac{x+1}{2}=\frac{-5}{3}  =>3x+3=-10=>3x=-13=>x=\frac{-13}{3} \\\\c) \frac{x}{2}=\frac{x+1}{3}  =>3x = 2x +2 => x = 2\\\\d) x + 2x =5 => 3x = 5 => x =\frac{5}{3}\\ \\e) 3x-x = 0.2 => 2x = \frac{2}{10}  => x = \frac{1}{10} \\\\f)2(x+1) -3 = 2 => 2x +2 -3 = 2 => 2x -1 =2 => 2x = 3 => x = \frac{3}{2} \\\\g) \frac{x-1}{3}=2x =>x-1 =6x =>5x = -1 =>x =\frac{-1}{5}$