Question

X•21=50 54•X=20. 2(supra)3•X=20. 4=1(supra)3•X. X•1(supra)2=3(supra)4

Cum draci-da-miaza se face ? (Cel putin pe mine ma distruge psihic)

Answer 1

x=50/21
x=20/54
2/3x=20   2x=60   x=60/2=30
4=1/3x   1=4*3x   1=12x  x=1/2
x1/2=3/4  2x=3   x=3/2