Question

será que podem responder essa pfv​

Answer 1

2)

13 + ◙ = 15 + 12

13 + ◙ = 27

◙ = 27 - 13

◙ = 14

3)

x + 7 = 20 + 2

x + 7 = 22

x = 22 - 7

x = 15

Bom dia =)

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