Question

A) 3(x + 3) – 1= 2

B) 3(x + 2)= 2(x – 7)

C) 3(x + 2)= 2(x + 3) + 6 = 0

D) 6x + 3(x + 1) – 7= 2(2x – 1) – 4(1 – x)

Answer 1

Resposta:

Explicação passo-a-passo:

A) 3(x + 3) – 1= 2

3x + 9 – 1= 2

3x=-8+2

3x=-6

X=-2

B) 3(x + 2)= 2(x – 7)

3x + 6= 2x – 14

X=-20

C) 3(x + 2)=

3x+6

X=2

2x + 6 + 6 = 0

2x + 12= 0

2x=-12

X=-6

D) 6x + 3(x + 1) – 7= 2(2x – 1) – 4(1 -x)

6x + 3x + 3 – 7= 4x – 2– 4 +4x

9x -4= 8x – 6

X=-2

Answer 2

Olá, vamos resolver as equações e encontrar as soluções.

A) 3(x + 3) – 1= 2

3x + 9 = 2 + 1

3x = 3 - 9

x = -6/3

$\boxed{x=-2}$

B) 3(x + 2)= 2(x – 7)

3x + 6 = 2x - 14

3x - 2x = -14 - 6

$\boxed{x=-20}$

C) 3(x + 2)= 2(x + 3) + 6

3x + 6 = 2x + 6 + 6

3x - 2x = 12-6

$\boxed{x=6}$

D) 6x + 3(x + 1) – 7= 2(2x – 1) – 4(1 – x)

6x + 3x + 3 – 7 = 4x - 2 – 4 + 4x

9x – 4 = 8x – 6

9x – 8x = –6 + 4

$\boxed{x=-2}$

Dúvidas? comente.

$\boxed{Att:ColossoBlack}$