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Resuelve :a) x - 7 = 6 - (x - 3)b)7x - (4 + 2x) = 1 + (x - 2)c)2(3x - 1) - 5x = 5 - (3x + 11)?

Resuelve : a) x - 7 = 6 - (x - 3) b)7x - (4 + 2x) = 1 + (x - 2) c)2(3x - 1) - 5x = 5 - (3x + 11).

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X - 7 = 6 - (x - 3)

x - 7 = 6 - x + 3

x + x - 7 = 9

2x = 9 + 7

2x = 16

x = 16 / 2

x = 8

7x - (4 + 2x) = 1 + (x - 2)

7x - 4 - 2x = 1 + x - 2

5x - 4 = x - 1

5x - x = 4 - 1

4x = 3

x = 3 / 4

2(3x - 1) - 5x = 5 - (3x + 11)

6x - 2 - 5x = 5 - 3x - 11

x - 2 = - 6 - 3x

x + 3x = 2 - 6

4x = - 4

x = - 4 / 4

x = - 1.