Question

calculati eliminand parantezele x+paranteza rotunda deschisa -8-x inchidem paranteza -paranteza rotunda deschisa -10+7paranteza inchisa . exercitiul 2. paranteza patrata deschisa -10+paranteza rotunda deschisa -2+5-11 paranteza rotunda inchisa -paranteza rotunda deschisa -9 inchide paranteza rotunda si patrata + paranteza rotunda deschisa -13 paranteza rotunda inchisa

Answer 1

x+(-8-x)-(-10+7)= x-8-x+10-7

-8+10-7=-5;

ex 2

[-10+(-2+5-11)-(-9)]+(-13)=

(-10-8+9)-13=

-9-13=-22