Question

5*8:[(a:25+5):6+3*5]=2

Answer 1

Răspuns: a = 625

Explicație pas cu pas:

5 × 8 : [( a : 25 + 5 ) : 6 + 3 × 5] = 2

40 :  [( a : 25 + 5 ) : 6 + 15] = 2

( a : 25 + 5 ) : 6 + 15 = 40 : 2

( a : 25 + 5 ) : 6 + 15 = 20

( a : 25 + 5 ) : 6 = 20 - 15

( a : 25 + 5 ) : 6 = 5

a : 25 + 5 = 5 × 6

a : 25 + 5 = 30

a : 25 = 30 - 5

a : 25 = 25

a = 25 × 25

a = 625

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25 × 25 = 25 × ( 20 + 5 ) = 25 × 20 + 25 × 5 = 500 + 125 = 625