Question

calcule a equacao: a) 2(×+6)=4(×+2) b) 10-2(×+3)=8+3(2×+5) Alguem para me ajudar​

Answer 1

Resposta:

A) 2x + 12 = 4x + 8

2x - 4x = 8 - 12

-2x = -4 (-1)

2x = 4

x = 4/2

x = 2

B) 10 - 2x - 6 = 8 +6x + 15

-2x - 6x = 8 + 15 - 10 + 6

-8x = 19 (-1)

8x = -19

x = -19/8

Answer 2

Olá...

A)

2(x + 6)= 4(x + 2)

2x + 12= 4x + 8

2x - 4x= 8 - 12

- 2x= - 4>>.(-1)

2x= 4

x= 4/2

x= 2

_______________

B)

10 - 2(x + 3)= 8 + 3(2x + 5)

10 - 2x - 6= 8 + 6x + 15

- 2x - 6x= 8 + 15 - 10 + 6

- 8x= 19>>.(-1)

8x= - 19

x= - 19/8