10. Efectuați:
a) 34(-7+2)+(-5)+(-3-1+4) (-7);
b) -7—(3+2–6--1)+(-6+3-1);
c) 5+(2–8–3)-(-9+7)+(-3)–2+1;
d) -15+(-3+2–1––7+5–2)H(-9);
e) 6 (3+8)-(-6)+(-6H-12+3-1);
f) -2-(-8+6)-(13+11-1)-(-2)
![10 Efectuația 34725314 7b 73261631c 528397321d 15321752H9e 6 3866H1231f 286131112 class=](https://ro-static.z-dn.net/files/df0/428f3066838d7097845fe0b902627d1d.jpg)