Question

1- Qual a raiz da equaçao 20-8x=3x+81


2-Resolva a equaçao -18+2x+6=7x-12-8x

Answer 1

Resposta:  

Explicação passo-a-passo:

1)

20-8x=3x+81

-8x-3x=81-20

-11x=61 (-1)

11x=-61

x=-61/11

2)

-18+2x+6=7x-12-8x

2x-7x+8x=-12+18-6

3x=0

x=0/3

x=0

Answer 2

resolução!

1 )

20 - 8x = 3x + 81

- 8x - 3x = 81 - 20

- 11x = 61 * (-1)

x = - 61/11

2 )

- 18 + 2x + 6 = 7x - 12 - 8x

2x - 7x + 8x = - 12 + 18 - 6

3x = 0

x = 0/3

x = 0