Question

clasa a 4-a
determinati numarul natural x stiind ca 2+2*[2+2*(2-2/x)]=10

Answer 1

2+2*[2+2*(2-2/x)]=10
2*[2+2*(2-2/x)]=10-2
2*[2+2*(2-2/x)]=8
2+2*(2-2/x)=8/2
2+2*(2-2/x)=4
2*(2-2/x)=4-2
2*(2-2/x)=2
2-2/x=2:2
2-2/x=1
2/x=2-1
2/x=1
x=2:1
x=2
R:x=2
Sper ca te-am ajutat!!!!!!:)

Answer 2

2 + 2 x [ 2 + 2 x (2-2: x )] = 10 
2 + 2 x ( 2 + 2 x b) = 10 
2 x ( 2+ 2 x b) = 10 - 2 = 8 
2 + 2 x b = 8: 2 = 4
2 x b = 4 - 2 = 2
b = 2 : 2 
b= 1 
2-2: x = 1 
2 : x = 2 - 1 = 1 
x = 2: 1 
x = 2