Question

2 – Calcule a raiz ou solução das seguintes equações: Grupo 1: a) 5x + 1 = 36 b) 7x = 4x + 5 c) 9x - 7 = 5x + 13 d) 15x - 13 = -39 - 11x e) 21 + 9x = 15x + 33 f) 16 - 11x + 12 = -15x Grupo 2: a) 2 ⋅ (2x - 1) -6 ⋅ (1 - 2x) = 2 ⋅ (4x -5) b) 2x + 3 ⋅ (x - 2) = 7x + 34 c) 4 ⋅ (x - 2) = 4 + 2 ⋅ (x - 1) d) 10 ⋅ (100 - x) + 2x = 3 ⋅ (x + 9) - 28 e) 5 ⋅ (x + 60) - 400,7 = 8 ⋅ (x - 40) f) 7 ⋅ (2x - 50) - 4x = 10 ⋅ (51,9 - 0,1x) Grupo 3: a) 3��4 − 23 = �� − 52 b) ��2 + 1 = ��5 + 14 c) ��4 + ��3 = �� − 100 d) 2��3 + 5��6= 12 e) ��5 = 21 − ��2 f) 45 +3��4 = 110 + x Grupo 4: a)2(4��−3) 3−4(4��+5) 9- 5(��− 4) 6 = 2 b) 2x+5 3−4x−9 6 =3−4�� 2

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