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)
