Question

(4/5 -x)+ 13/20=7/10
Решите пж

Answer 1

$(\frac{4}{5} - x) + \frac{13}{20} = \frac{7}{10 } \\ \frac{4}{5} - x = \frac{7}{10} - \frac{13}{20} \\ \frac{4}{5} - x = \frac{1}{20} \\ x = \frac{4}{5} - \frac{1}{20} \\ x = \frac{3}{5}$
По моему так

Answer 2

4/5-x= 7/10-13/20
4/5-x=1/20
X=4/5-1/20
x=15/20