Question

Resolva as equações:

A) X+ X=10
3 4 6

B)X+1 = 1
6 5 2

C)X+X=12
5

D)X+ X=21
5 2

Answer 1

a) x + x = 10
2x = 10
x = 10/2
x = 5

b) x + 1 = 1
x = 1 - 1
x = 0

c) x + x = 12
2x = 12
x = 12/2
x = 6

d) x + x = 21
2x = 21
x = 21/2

Answer 2

A)

x+x= 10

2x= 10

 x= 10/2

 x= 5 → Resposta:)

B)

x+1= 1

x= 1-1

x= 0 → Resposta:)

C)

x+x= 12

2x= 12

 x= 12/2

 x= 6 → Resposta:)

D)

x+x= 21

2x= 21

 x= 21/2

x= 10,5 → Resposta:)