Question

Помоги мне, очень нужно))) ​

Answer 1

$z - \frac{7}{4} = \frac{31}{12}$

$z = \frac{31}{12} + \frac{7}{4}$

$z = \frac{31}{12} + \frac{21}{12}$

$z = \frac{52}{12}$

$z = 4\frac{4}{12}$