Znajdz "x" 1. {2 + x/7 - x} - x = 1/3 2. {1 + x/3} + {6 - x/2} = 2
Znajdz "x"
1. {2 + x/7 - x} - x = 1/3
2. {1 + x/3} + {6 - x/2} = 2
1. {2 + x/7 - x} - x = 1/3 2 - 6/7x - x = 1/3 -13/7x=-5/3 x=35/39 2. {1 + x/3} + {6 - x/2} = 2 1+1/3x+6-1/2x=2 2/6x-3/6x=2-7 -1/6x=-5 x=30