Question

көмектесіп жіберіндерші шығару жолымен пж керек болып тұр​

Answer 1

Ответ:

Аз балл қойыпсың, бірақ көмектесуге дайынмын.

Шығару жолымен:

1)

$\frac{\frac{2}{5}}{\frac{3}{5}x-\frac{1}{5}} -\frac{1}{5} =\frac{1}{20} \\\\\frac{\frac{8}{20}}{\frac{12}{20}x-\frac{4}{20}} -\frac{4}{20} =\frac{1}{20} \\\\\frac{\frac{8}{20}}{\frac{12}{20}x-\frac{4}{20}}=\frac{1}{20}+\frac{4}{20}\\\\\frac{\frac{8}{20}}{\frac{12}{20}x-\frac{4}{20}}=\frac{5}{20}\\\\\frac{12}{20}x-\frac{4}{20}=\frac{\frac{8}{20}}{\frac{5}{20}} \\\\\frac{12}{20}x-\frac{4}{20}=\frac{8}{20}*\frac{20}{5}\\\\\frac{12}{20}x-\frac{4}{20}=\frac{8}{5}$

$\frac{12}{20}x=\frac{32}{20} +\frac{4}{20} \\\\\frac{12}{20}x=\frac{36}{20} \\\\x=\frac{\frac{36}{20}}{\frac{12}{20}}\\\\x=\frac{36}{20}*\frac{20}{12}\\\\x=3$

2)

$\frac{\frac{2}{3}}{\frac{5}{6}x- \frac{1}{6}} +\frac{1}{3}= \frac{7}{9} \\\\\\\frac{\frac{12}{18}}{\frac{15}{18}x- \frac{3}{18}} +\frac{6}{18}= \frac{14}{18} \\\\\frac{\frac{12}{18}}{\frac{15}{18}x- \frac{3}{18}}=\frac{14}{18}-\frac{6}{18}\\\\\frac{\frac{12}{18}}{\frac{15}{18}x- \frac{3}{18}}=\frac{8}{18}\\\\\frac{15}{18}x- \frac{3}{18}=\frac{\frac{12}{18}}{\frac{8}{18}} \\\\\frac{15}{18}x- \frac{3}{18}=\frac{12}{18}*\frac{18}{8}\\\\\frac{15}{18}x- \frac{3}{18}=\frac{3}{2}$

$\frac{15}{18}x=\frac{27}{18}+\frac{3}{18}\\\\\frac{15}{18}x=\frac{30}{18}\\\\x=\frac{\frac{30}{18}}{\frac{15}{18}} \\\\x=\frac{30}{18}*\frac{18}{15}\\\\x=2$

3)

$\frac{\frac{3}{4} }{\frac{1}{8}x+ \frac{3}{8} }- \frac{1}{2}= \frac{5}{14} \\\\\frac{\frac{42}{56} }{\frac{7}{56}x+ \frac{21}{56} }- \frac{28}{56}= \frac{20}{56}\\\\\frac{\frac{42}{56} }{\frac{7}{56}x+ \frac{21}{56} }=\frac{20}{56}+\frac{28}{56}\\\\\frac{\frac{42}{56} }{\frac{7}{56}x+ \frac{21}{56} }=\frac{48}{56}\\\\\frac{7}{56}x+ \frac{21}{56}=\frac{\frac{42}{56}}{\frac{48}{56}} \\\\\frac{7}{56}x+ \frac{21}{56}=\frac{42}{56}*\frac{56}{48}\\\\\frac{7}{56}x+ \frac{21}{56}=\frac{7}{8}$

$\frac{7}{56}x=\frac{49}{56}-\frac{21}{56}\\\\\frac{7}{56}x=\frac{28}{56} \\\\x=\frac{\frac{28}{56}}{\frac{7}{56}} \\\\x=\frac{28}{56}*\frac{56}{7}\\\\x=4$