[tex](e - 5 \times 6 + 10 \times 5) - 50 + 4 \times 8 = 42[/tex]
[tex](e - 30 + 50) - 50 + 32 = 42[/tex]
[tex](e + 20) - 50 + 32 = 42[/tex]
[tex]e + 20 - 50 + 32 = 42[/tex]
[tex]e + 2 = 42[/tex]
[tex]e = 42 - 2[/tex]
[tex]e = 40[/tex]
Răspuns:
(e-30+50)-50+32=42
(e-30+50)-50=42-32
(e-30+50)-50=10
(e-30+50)=10+50
e-30+50=60
e-30=60-50
e-30=10
e=10+30
e=40
