Odpowiedź:
[tex]a) 3(\frac{2}{3} x - 2) = 14-3x\\2x-6 = 14-3x\\2x+3x = 14+6\\5x = 20 /:5\\x=4[/tex]
[tex]b) \frac{1}{2}x +\frac{1}{2} = \frac{5}{6} x / *6\\3x+3 = 5x\\3x-5x = -3\\-2x = -3 /: (-2)\\x = 3/2 = 1,5[/tex]
Szczegółowe wyjaśnienie:
[tex]\displaystyle 3(\frac{2}{3}x-2)=14-3x\\\\ 2x-6=14-3x\\\\2x+3x=14+6\\\\5x=20/:5\\\\x=4\\\\\\\\\frac{1}{2}x+\frac{1}{2} =\frac{5}{6}x\\\\ \frac{3}{6}x-\frac{5}{6} x=-\frac{1}{2}\\\\ -\frac{2}{6}x=-\frac{3}{6}/*(-\frac{6}{2})\\\\x=-\frac{3}{6}*(-\frac{6}{2} )\\\\ x=\frac{3}{2} =1\frac{1}{2}[/tex]
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Verified answer
Odpowiedź:
[tex]a) 3(\frac{2}{3} x - 2) = 14-3x\\2x-6 = 14-3x\\2x+3x = 14+6\\5x = 20 /:5\\x=4[/tex]
[tex]b) \frac{1}{2}x +\frac{1}{2} = \frac{5}{6} x / *6\\3x+3 = 5x\\3x-5x = -3\\-2x = -3 /: (-2)\\x = 3/2 = 1,5[/tex]
Szczegółowe wyjaśnienie:
Odpowiedź:
Szczegółowe wyjaśnienie:
[tex]\displaystyle 3(\frac{2}{3}x-2)=14-3x\\\\ 2x-6=14-3x\\\\2x+3x=14+6\\\\5x=20/:5\\\\x=4\\\\\\\\\frac{1}{2}x+\frac{1}{2} =\frac{5}{6}x\\\\ \frac{3}{6}x-\frac{5}{6} x=-\frac{1}{2}\\\\ -\frac{2}{6}x=-\frac{3}{6}/*(-\frac{6}{2})\\\\x=-\frac{3}{6}*(-\frac{6}{2} )\\\\ x=\frac{3}{2} =1\frac{1}{2}[/tex]