Question

1-Resolva as equações
b) ×+3=7+1
c) ×+3=7+1
d) ×-3=3+1

Answer 1

Resposta:

Olá!

b) ×+3=7+1

x = 7 + 1 - 3

x = 8 - 3

x = 5

c) ×+3=7+1

x = 8 - 3

x = 5

d) ×-3=3+1

x = 4 + 3

x = 7