46)
x=volum vas
x-x/2-3=40%x
x-x/2-3=2x/5
10x-5x-30=4x
x=30 litri incap in vas
47)
x=nr televizoare
3x/8= ziua 1
x-3x/8=5x/8=rest
5x/8 × 2/3=5x/12=ziua 2
5x/8-5x/12=(15x-10x)/24=5x/24 ziua 3
3x/8-24=5x/24
9x-576=5x
4x=576
x=144 televizoare
3x/8=144×3/8=54 televizoare ziua 1
144-54=90 televizoare
90×2/3=60 televizoare ziua 2
90-60=30 televizoare ziua 3
