Question

1.-) 2 (X + 8)= X+4

6.-) X+12 = 2x+4

2.-) 3x-5 = 2x

7.-) X+3=24

3-) 5 (X+4) = 3(X +8)

8.-) 3X – 7 = 20

4.-) x+6= 2( X-2)

9.-) 8x +6 =

Answer 1

Respuesta:

1. 2(x + 8) = x + 4

2x + 16 = x + 4

2x - x = 4 - 16

x = -12

x = -12 / 1 = -12

x = -12

2. x + 12 = 2x + 4

x - 2x = 4 - 12

-x = -8

x = -8 / -1 = +8

x = +8

3. 3x - 5 = 2x

3x - 2x = +5

x = 5

x = 5 / 1 = 5

x = 5

4. x + 3 = 24

x = 24 - 3

x = 21

x = 21 / 1 = 21

x = 21

5. 5(x + 4) = 3 (x + 8)

5x + 20 = 3x + 24

5x - 3x = 24 - 20

2x = 4

x = 4 / 2 = 2

x = 2

6. 3x - 7 = 20

3x = 20 + 7

3x = 27

x = 27 / 3 = 9

x = 9

7. x + 6 = 2(x - 2)

x + 6 = 2x - 4

x - 2x = -4 - 6

-x = -10

x = -10 / -1 = +10

x = +10

Explicación paso a paso:

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