Question

Aflati nr ,,x,, din relatia:2+2×[2+2×(2:x)]=10

Answer 1

2+[4+4ori(4:2x)]=10
[4+4ori(4:2x)]=10-2
4ori(4:2x)=8-4
4:2x=4:4
2x=1ori4
x=4:2
x=2

Answer 2

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