a) 3x + (2x – 2) + 9 = 6 c) (3x – 2) – 4 + (x - 3) = 8 3x + 2x – 2 + 9 = 6 3x – 2 – 4 + x - 3 = 8 3x + 2x = 6 +2 – 9 3x + x = 8 + 2 + 4 + 3 5x = -1 " 4x = 17 X = − "* # X = % b) x + (x + 2) = 36 x + x + 2 = 36 x + x = 36 – 2 2x = 34 $% X = = 17 & a) 2x – (x...
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a) 3x + (2x – 2) + 9 = 6 c) (3x – 2) – 4 + (x - 3) = 8 3x + 2x – 2 + 9 = 6 3x – 2 – 4 + x - 3 = 8 3x + 2x = 6 +2 – 9 3x + x = 8 + 2 + 4 + 3 5x = -1 " 4x = 17 X = − "* # X = % b) x + (x + 2) = 36 x + x + 2 = 36 x + x = 36 – 2 2x = 34 $% X = = 17 & a) 2x – (x – 3) = -3 – (4x – 5) c) 3x – (7 - x) = 9 2x – x + 3 = - 3 – 4x + 5 3x – 7 + x = 9 2x – x + 4x = - 3 + 5 – 3 3x + x = 9 +7 5x = - 1 4x = 16 +" ", X = X = = 4 # % b) - (5x + 2) + 4 = 6 – (-2x + 5) - 5x - 2 + 4 = 6 + 2x - 5 - 5x - 2x = 6 – 5 + 2 – 4 - 7x = - 1 +" " X = = +* * Lunes 30 de marzo ACTIVIDADES 1º PMAR
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