Question

Vă rog urgent dau coroană!!!!

Answer 1

a) [(x:4+5):6+10]:10+3=13

Trecem termeni din stanga in dreapta cu semn schimbat(inafara parantezei):

[(x:4+5):6+10]:10=13-3

[(x:4+5):6+10]:10=10

(x:4+5):6+10=10x10

(x:4+5):6+10=100

(x:4+5):6=100-10

(x:4+5):6=90

x:4+5=90×6

x:4+5=546

x:4=546-5

x:4=546

x=546×4

x=2.184

b) [(3×x-12):6+7]:10-2=0

(facem acelasi lucru)

+poza b)