Question

•36=36×(n×n)

•90=75+5×n

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Answer 1

36=36•(1•1) n= 1

90=75+5•3 n= 3

Answer 2

Răspuns

Explicație pas cu pas:

36 = 36 × ( n × n )

n × n = 36 : 36

n × n = 1 ⇒    n = 1

36 = 36 × ( 1 × 1 )

_______________

90 = 75 + 5 × n

5 × n = 90 - 75

5 × n = 15

n = 15 : 5

n = 3

90 = 75 + 5 × 3