tex]...

krevetka2020 @krevetka2020

August 2022 1 5 Report

Помогите пожалуйста с Алгеброй 7 клас
[tex] - 6x = \frac{1}{3} [/tex]
[tex]0.1x = - 2.75[/tex]
[tex] \frac{1}{3} x = 12[/tex]
[tex] \frac{5}{7} x = - \frac{10}{49} [/tex]

Answers & Comments

kombat1488

$- 6x = \frac{1}{3} \\ x=\frac {\frac {1}{3}}{-6}\\x=-\frac {1}{18}$

$0.1x = - 2.75\\\frac {1}{10}x=-\frac {275}{100}\\x=\frac {\frac {275}{100}}{\frac {1}{10}}\\x=\frac {275*10}{100*1}\\x=\frac {275}{10}\\x=27.5$

$\frac{1}{3} x = 12\\x=12*3\\ x=36$

$\frac{5}{7} x = - \frac{10}{49}\\x=-\frac {\frac {10}{49}}{\frac {5}{7}}\\x=-\frac {10*7}{49*5}\\x=-\frac {2*1}{7*1}\\x=-\frac {2}{7}$

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