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Pedrolucas1656
10

B) 3x + 2 / 4 = x - 3 / 2

2(3x + 2) = 4(x - 3)

6x + 4 = 4x - 12

6x - 4x = - 12 - 4

2x = - 16

x = - 8c)3x + 10 = x + 30

3x - x = 30 - 10

2x = 20

x = 20 / 2

x = 10d)3(x + 25) = 813(x + 25) - (81) = 03x + 75 - 81 = 03x - 6 = 03x = 6x = 6 / 3x = 2e)3x - 5 = 16 3 x = 16 + 5 3x = 21 x = 21 / 3 x = 7 G)5x + - 50 = 25 - 50 + 5x = 25 - 50 + 50 + 5x = 25 + 500 + 5x = 25 + 505x = 25 + 505x = 75x = 7H)3x + 80 = x + 12080 + 3x = x + 12080 + 3x = 120 + x80 + 3x + - 1x = 120 + x + - 1x80 + 2x = 120 + x + - 1x80 + 2x = 120 + 080 + 2x = 12080 + - 80 + 2x = 120 + - 800 + 2x = 120 + - 802x = 120 + - 802x = 40X = 20.

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Respuesta 2

RichardDc
1

C)3x + 10 = x + 303x - x = 30 - 102x = 20x = 20 / 2x = 10D) 3(x + 25) = 81x + 25 = 81 / 3x = 27 - 25x = 2.