Question

Мало времени даю 35 жетонов

Answer 1

1)62/43+16/43=78/43

2)16/21-7/21=9/21

Answer 2

1) $x=62$

2)$x=\frac{7}{21}$

Пошаговое объяснение:

$\frac{x}{43} +\frac{16}{43} =\frac{78}{43}$

$\frac{x}{43} =\frac{78-16}{43}$

$\frac{x}{43} =\frac{62}{43}$

$x=62$

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$\frac{16}{21}-x=\frac{9}{21}$

$-x=\frac{9-16}{21}$

$-x=-\frac{7}{21}$

$x=\frac{7}{21}$