Zadanie 5 i 8 strona 37 i 38 Ćwiczeniówka Matematyka 2001 klasa 1 gim cz. 2: X+5 ( / 4) < 7-x (/6) 4x/3 + 2x (/4) < 1i1/2 x +5 Pliss pomóżcie daje Naj

[latex]1.\\frac{x+5}{4} leq frac{7-x}{6} |*12\\3(x+5) leq 2(7-x)\\3x+15 leq 14-2x\\3x+2x leq 14-15\\5x leq -1 /:5\\x leq -frac{1}{5}[/latex] [latex]2.\\frac{4x}{3}+frac{2x}{4} < 1frac1{2}x+5\\frac{4x}{3}+frac{2x}{4}< frac{3}{2}x+5 |*12\\16x+6x< 18x+60\\22x-18x < 60\\4x < 60 /:4\\x < 15[/latex]