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calcul 60-10:(37-4 × x)=50

Răspuns :

60 - 10(37 - 4 • x ) = 50
-370 + 40x = -10
40x = 360
x = 9
60 - 10 : (37- 4 × x)=50

10 : (37- 4 × x)= 60 - 50

10 : (37- 4 × x) = 10

37- 4 × x = 10 : 10

37 - 4 × x = 1

4 × x = 37 - 1

4 × x = 36

x = 36 : 4

x = 9

Verificare:
60 - 10 : (37 - 4×9) =
= 60 - 10 : (37 - 36) =
= 60 - 10 : 1 =
= 60 - 10 =
= 50