Question

afla nr x din egalitatile x+(4/9-1/9)=1​

Answer 1

=> x+ 3/9 =1
x+1/3 =1. |*3
3x +1 = 3
3x = 2 => x= 2/3

Answer 2

Răspuns:

$x+ (\frac{4}{9} -\frac{1}{9} ) = 1$

$x+\frac{4-1}{9} =1$

$x+\frac{3}{9} = 1$

$x+\frac{1}{3} = 1$

$x=1-\frac{1}{3}$

$x=\frac{3-1}{3}$

$x=\frac{2}{3}$