Question

Afla valoare lui x. x•5+4x9=9x9
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Answer 1

Răspuns:

x•5 + 36 = 81

x•5 = 81 - 36

x•5 = 45

x = 45 : 5

x = 9

Answer 2

Răspuns:

X • 5 + 4 • 9 = 9 • 9

X • 5 + 36 = 81

X • 5 = 81 - 36

X • 5 = 45

X = 45 : 5

X = 9