Răspuns
Explicație pas cu pas:
(d × 4 + 20 ) : 4 = 12
d × 4 + 20 = 12 × 4
d × 4 + 20 = 48
d × 4 = 48 - 20
d × 4 = 28
d = 28 : 4
d = 7
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36 - 42 : e : ( 15 : 3 - 4 - 1 ) - 20 = 10
36 - 42 : e : ( 5 - 4 - 1 ) = 10 + 20
36 - 42 : e : ( 1 - 1 ) = 30
42 : e : 0= 36 - 30
→ Exercitiu gresit ! NU exista impartire la 0 ! Impartirea la 0 NU ARE SENS !
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22 - 5 × ( 38 - 4 × g ) = 12
5 × ( 38 - 4 × g ) = 22 - 12
5 × ( 38 - 4 × g ) = 10
38 - 4 × g = 10 : 5
38 - 4 × g = 2
4 × g = 38 - 2
4 × g = 36
g = 36 : 4
g = 9