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A)13x - 15 - 6x = 1 - (7x + 9), b)7x - (4 + 2x) = 1 + (x - 2), c)1 - 2 (2x - 1) = 5x - (5 - 3x), d) 7 - (2x + 9) = 11x - 5(1 - x)?

A)13x - 15 - 6x = 1 - (7x + 9), b)7x - (4 + 2x) = 1 + (x - 2), c)1 - 2 (2x - 1) = 5x - (5 - 3x), d) 7 - (2x + 9) = 11x - 5(1 - x).

En resumen

A) 13x - 15 - 6x = 1 - (7x + 9) 7x - 15 = 1 - (63x) 7x + (63x) = 1 + 15 7x + 63x = 16 70x = 16 x = 16 / 70 = x = 0. 22 B) 7x - (4 + 2x) = 1 + (x - 2) 7x - 4 - 2x = 1 + x - 2 5x - 4 = - 1 + x 5x - x = - 1 + 4 4x = 3 = X0.

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Yammafe8kariagv
7

A) 13x - 15 - 6x = 1 - (7x + 9) 7x - 15 = 1 - (63x) 7x + (63x) = 1 + 15 7x + 63x = 16 70x = 16 x = 16 / 70 = x = 0.

22

B) 7x - (4 + 2x) = 1 + (x - 2) 7x - 4 - 2x = 1 + x - 2 5x - 4 = - 1 + x 5x - x = - 1 + 4 4x = 3 = X0.

75

C) 1 - 2(2x - 1) = 5x - (5 - 3x) 1 - 4x + 2 = 5x - 5 + 3x 3 - 4x = 8x - 5 - 4x - 8x = - 5 - 3 - 12x = - 8 x = 8 / 12 x = 0.

66

D)7 - (2x + 9) = 11x - 5(1 - x) 7 - 2x - 9 = 11x - 5 + 5x - 2 - 2x = 16x - 5 - 2x - 16x = - 5 + 2 - 18x = - 3 x = 18 / 3 x = 0.

166.