Question

Calcule a expressão

-7.(-5)+6°-[(+2)5:(-8)-7]

Answer 1

$-7.(-5)+ 6^{0}-[( \frac{(+2).5}{(-8).(-7)} ] \\ \\ +35+ 1-[ \frac{10}{56} ] \\ \\ +35+ 1- \frac{10}{56} \\ \\ \frac{1960+56-10}{56} \\ \\ \frac{2006:2}{56:2}= \frac{1003}{28}$