Question

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a) 8 – 2(3x – 3) = x

b) 6(2 – x) + 4 = 1 – (x – 3)

c) 3(x + 3) = x – 5

d) 2 (2x -3) = 6 + x

e) 4(x- 10) = -6 (2 – x) -6

Answer 1

Respuesta:

a) 2

b)12/5=2.4

c) -7

d) 4

e) -11

Explicación paso a paso:

a) 8 – 2(3x – 3) = x

8 – 6x +6 = x

8 +6 = 7x

14= 7x

14/7=x

2=x

b) 6(2 – x) + 4 = 1 – (x – 3)

12 - 6x + 4 = 1 - x + 3

12 +4 - 1 - 3 = 6x - x

12 = 5x

12/5 = x

2,4 = x

c) 3(x + 3) = x – 5

3x + 9 = x - 5

2x = - 14

x = - 14/2

x = - 7

d) 2 (2x -3) = 6 + x

4x - 6 = 6 + x

4x - x = 6 + 6

3x = 12

x = 12/3

x = 4

e) 4(x- 10) = -6 (2 – x) -6

4x - 40 = -12 + 6x - 6

- 22 = 2x

- 22/2 = x

- 11  = x

Espero te sirva, éxitos.

Answer 2

Respuesta:

Explicación paso a paso:

a)

8 – 2(3x – 3) = x

8 – 6x + 6 = x

8 + 6 = x  + 6x

14 = 7x

14/7 = x

2 = x

b)

6(2 – x) + 4 = 1 – (x – 3)

12 – 6x + 4 = 1 – x + 3

16 – 6x  =  – x + 4  

16 - 4  =  – x + 6x  

12  =  5x

12/5 = x  

c)

3(x + 3) = x – 5

3x + 9 = x – 5  

3x - x = – 5   - 9

2x = -14

x = -14/2

x = -7

d)

2 (2x -3) = 6 + x

4x - 6) = 6 + x

4x - x = 6 + 6

3x = 12

x = 12/3

x = 4

 

e)

4(x- 10) = -6 (2 – x) -6

4x - 40 = -12 + 6x - 6

-40 + 12 + 6 = 6x - 4x

-40 + 18 = 2x

-22 = 2x

-22/2 = x

-11 = x