Hallar el valor de xa) x - 5 / x + 3 = 3 / 7b) - 2x = - 9c) 5x + 3(x + 2) = 6(x + 3)?

Question

Hallar el valor de x a) x - 5 / x + 3 = 3 / 7 b) - 2x = - 9 c) 5x + 3(x + 2) = 6(x + 3).

Imelditaluar · Accepted Answer

X - 5 3 - - - - - - - - = - - - - -

x + 3 7

7x - 35 = 3x + 9

7x - 3x = 9 + 35 4x = 44 x = 11 - 2x = - 9

2x = 9 x = 9 / 2

5x + 3 (x + 2) = 6 (x + 3)

5x + 3x + 6 = 6x + 18

8x + 6 = 6x + 18

8x - 6x = 18 - 6 2x = 12 x = 12 / 2 x = 6.

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