Question

ajuda plisss
c) 4x+20 = 2x

d) -12 x = 3

e) - 16 x + 10 = 64

Answer 1

Resposta:

c) 4x + 20 = 2x

4x-2x=-20

2x=-20

x=-10

d)−

1

2

=

3

-12x=3

−12x=3

−

1

2

−

1

2

=

3

−

1

2

−12−12x​=−123​

2

Simplifique

Solução

=

−

1

4

Answer 2

Resposta:

c) 4x+20 = 2x

   4x - 2x = -20

   2x = -20

   x = -20/2

   x = -10  

d) -12 x = 3

    x = 3/-12

    x = -4  

e) - 16 x + 10 = 64

   -16x + 64 - 10

    -16x = 54

     x = 54/-16 = 27/8