Question

calculati:
a -13 + (-2-3);
b(-4+7)-(-2-3)+(-6+1).
repedeeeeee, dau coroana​

Answer 1

$- 13 + ( - 2 - 3) = - 13 + ( - 5) = - 18$

$( - 4 + 7) - ( - 2 - 3) + ( - 6 + 1) = 3 - ( - 5) + ( - 5) = 3 + 5 + ( - 5) = 3$