[(100:x)·4]+4·5]·2=2·60
Răspunsuri la întrebare
{[(100: x)•4]+4•5}•2=2•60
{[(100: x)•4]+4•5}•2=120
{[(100: x)•4]+4•5}=120:2
[(100: x)•4]+20=60
(100: x)•4=60-20
(100: x)•4=40
100: x=40:4
100: x=10
X=100:10
X=10
{[(100:x)·4]+4·5}·2=2·60 probă: {[(100:10)·4]+4·5}·2=120
{[(100:x)·4]+4·5} = 60 [(10·4)+4·5]·2=120
[(100:x)·4]+ 20 = 60 (40+ 20)·2=120
[(100:x)·4] = 60- 20 60·2= 120
(100:x)·4 = 40 120=120
(100:x) = 40:4
100: x = 10
x = 100:10
x = 10