Question

A.-2(X-3)=18

B.4(x-1)-2(3X×4)=6

C.3(2X-5)=9-2X

E.10-4X=9+2X

(so comegui fazer a D)​

Answer 1

A)

- 2(x - 3)= 18

- 2x + 6= 18

- 2x= 18 - 6

- 2x= 12>> .(-1)

2x= 12

x= 12/2

x= 6

C)

3(2x - 5)= 9 - 2x

6x - 15= 9 - 2x

6x + 2x= 9 + 15

8x= 24

x= 24/8

x= 3

E)

10 - 4x= 9 + 2x

- 4x - 2x= 9 - 10

- 6x= - 1>> .(-1)

6x= 1

x= 1/6

Answer 2

Resposta:

A)-6

B)-9

C)8

D)1/6

Explicação passo-a-passo:

A)-2(x-3)=18

-2x+6=18

-2x=18-6

-2x=12.(-1)

2x=-12

x=-12/2

x=-6

B)4(x-1)-2 (3x.4)=6

4x-4-6x-8=6

4x-6x=6+12

-2x=18. (-1)

2x=-18

x=-18/2

x=-9

C)3 (2x-5)=9-2x

6x-15=9-2x

6x+2x=9+15

8x=24

x=24/8

x=3

D)10-4x=9+2x

-4x-2x=9-10

-6x=-1. (-1)

6x=1

x=1/6