Question

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Answer 1

Explicación paso a paso:

4. (6x - 9) ÷ 9= 3

6/9x - 9/9 = 3

2/3x = 3 + 1

x = 4 ÷ 2/3

x = 6

5. 7x - 10 = 45 - 4x

7x + 4x = 45 + 10

x = 55 ÷ 11

x = 5

6. 2x + 6 = 10

2x = 10 - 6

x = 4 ÷ 2

x = 2

7. (4x - 2) ÷ 2 = 13

4/2x - 2/2 = 13

2x = 13 + 1

x = 14 ÷ 2

x = 7

8. 7x - 2 = 5x + 20

7x - 5x = 20 + 2

x = 22 ÷ 2

x = 11

9. (x + 3) ÷ 2 = (x + 6) ÷ 3

1/2x + 3/2 = 1/3x + 6/3

1/2x - 1/3x = 6/3 - 3/2

3/6x - 2/6x = 12/6 - 9/6

x = 3/6 ÷ 1/6

x = 3

10. 5 (x + 3) = 4 (x + 5)

5x + 15 = 4x + 20

5x - 4x = 20 - 15

x = 5 ÷ 1

x = 5