Question

resolva as equaçoes 8x -7 = 6x +3 e - 2x=14

Answer 1

Explicação passo-a-passo:

a)

8x - 7 = 6x + 3

8x - 6x = 3 + 7

2x = 10

x = 10/2

x = 5

b)

-2x = 14 .(-1)

2x = -14

x = -14/2

x = -7

Answer 2

$a)8x -7 = 6x +3 \\ 8x - 6x = 3 + 7 \\ 2x = 10 \\ x = 5 \\ \\ b) - 2x = 14 \\ - 2x \div ( - 2) = 14 \div ( - 2) \\ x = - 7$