MatemáticasBásico1 respuestas

A) - 15x + 12 + 3?

A) - 15x + 12 + 3. (2x - 6) = 3x - (21x - 1) + 2 b) 4 - 2. (3 - x) + 5x - 7 = 12x - 19 c) (9x + 6) : 3 + 2 = 13 d) (8x - 6) : 2 = 3x - ((6 - 2x) + 7 e) (12x + 8) : 4 = (9x - 6) : 3 + 4 f) - 3x + 2 - 5(7 - 8x) = 4x - 3x - (2x + 3) + 27x.

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Violetaflores64
4

A) - 15x + 12 + 6x - 18 = 3x - 21x + 1 + 2 - 9x - 6 = - 18x + 3 - 9x + 18x = 3 + 69x = 9X = 9 / 9X = 1B) 4 - 6 + 2x + 5x - 7 = 12x - 194 - 13 + 19 = 12x - 7x10 = 5x10 / 5 = xX = 2c) (9x + 6) : 3 + 2 = 139x + 6 = 13×59x = 65 - 6X = 59 / 9d) (8x - 6) : 2 = 3x - (6 - 2x) + 78x - 6 / 2 = 3x - 6 + 2x + 78x - 6 / 2 = 5x + 18x - 6 - 5x = 1×23x = 2 + 6X = 8 / 3e) (12x + 8) : 4 = (9x - 6) : 3 + 4(12x + 8)×7 = (9x - 6)×484x + 56 = 36x - 2484x - 36x = - 24 - 5648x = - 80X = 80 / 48X = 5 / 3f) - 3x + 2 - 5(7 - 8x) = 4x - 3x - (2x + 3) + 27x - 3x + 2 - 35 + 40x = 28x - 2x - 337x - 33 = 26x - 337x - 26x = - 3 + 3311x = 30X = 30 / 11.