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[12-9:3+ (129): 3] x z + 1 = 41​

Răspuns :

Răspuns:

Explicație pas cu pas:

[12-9:3+ (129): 3] x z + 1 = 41​

(12-3+43)·z=40

52z=40    ⇒z=40/52=10/13         ⇒z=10/13

[12 - 9 : 3 + (12 - 9) : 3] × z + 1 = 41​

[12 - 9 : 3 + (12 - 9) : 3] × z = 41 - 1

[12 - 9 : 3 + (12 - 9) : 3] × z = 40

z = 40 : [12 - 9 : 3 + (12 - 9) : 3]

z = 40 : (12 - 9 : 3 + 3 : 3)

z = 40 : (12 - 3 + 3 : 3)

z = 40 : (12 - 3 + 1)

z = 40 : (9 + 1)

z = 40 : 10

[tex]\bf z = 4[/tex]

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Sau:

[12 - 9 : 3 + (12 - 9) : 3] × z + 1 = 41​

[12 - 3 + (12 - 9) : 3] × z + 1 = 41​

(12 - 3 + 3 : 3) × z + 1 = 41​

(12 - 3 + 1) × z + 1 = 41​

(9 + 1) × z + 1 = 41​

10 × z + 1 = 41​

10 × z = 41​ - 1

10 × z = 40

z = 40 : 10

[tex]\bf z = 4[/tex]

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