Odpowiedź:
[tex]\frac{1}{3} x - 5 \leq 2x + 1\\\frac{1}{3} x -2x \leq 1+5\\\frac{1}{3} x -\frac{6}{3} x\leq 6 \\-\frac{5}{3} x\leq 6 \\x\geq 6*\frac{-3}{5} \\x\geq \frac{-18}{5}[/tex]
[tex]\frac{1}{3}[/tex]x-5[tex]\leq[/tex]2x+1
[tex]\frac{1}{3}x-2x\leq 5+1[/tex]
[tex]-1\frac{2}{3}x\leq 6[/tex]
[tex]-\frac{5}{3}x\leq 6 |*3[/tex]
[tex]-5x\leq 18 |:-5[/tex]
Jak wykonujemy jakies dzialanie przez minus to musimy zmienic znak na odwrotny zatem :
[tex]x\geq -\frac{18}{5}[/tex]
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Odpowiedź:
[tex]\frac{1}{3} x - 5 \leq 2x + 1\\\frac{1}{3} x -2x \leq 1+5\\\frac{1}{3} x -\frac{6}{3} x\leq 6 \\-\frac{5}{3} x\leq 6 \\x\geq 6*\frac{-3}{5} \\x\geq \frac{-18}{5}[/tex]
Odpowiedź:
[tex]\frac{1}{3}[/tex]x-5[tex]\leq[/tex]2x+1
[tex]\frac{1}{3}x-2x\leq 5+1[/tex]
[tex]-1\frac{2}{3}x\leq 6[/tex]
[tex]-\frac{5}{3}x\leq 6 |*3[/tex]
[tex]-5x\leq 18 |:-5[/tex]
Jak wykonujemy jakies dzialanie przez minus to musimy zmienic znak na odwrotny zatem :
[tex]x\geq -\frac{18}{5}[/tex]