Question

помогите решить уравнения.

Answer 1

$frac{18}{30} - x = frac{4}{30} + frac{6}{30} \ \ frac{4}{30} + frac{6}{30} = frac{10}{30} \ \ x = frac{10}{30} - frac{4}{30} = frac{6}{30} = frac{1}{5}$

Answer 2

Ответ:

5.

$frac{64}{70} - (x + frac{26}{70} ) = frac{5}{70}$

$frac{64}{70} - x - frac{26}{70} = frac{5}{70}$

$frac{38}{70 } - x = frac{5}{70}$

$- x = frac{5}{70} - frac{38}{70}$

$x = frac{32}{70}$

6.

$x + frac{27}{46} = frac{35}{46} + frac{2}{46}$

$x + frac{27}{46 } = frac{37}{46}$

$x = frac{37}{46} - frac{27}{46}$

$x = frac{10}{46}$