Question

1)Resolva as equações: (RESPOSTAS E RESULTADOS)

a)10x +16 = 14x + 8

b)2(x - 3) = -3(x - 3)

c)4(5x - 3) - 64(3 - x) - 3(12x - 4) = 96

d)5(x+ 1) + 6(x+2) = 9(x+3)

e)18x - 43 = 65

f)23x - 16 = 14 - 17x

Answer 1

a) 10x + 16 = 14 x + 8
10x - 14x = 8 - 16
-4x = -8
x= -8/-4
x=2

b) 2x - 6 = -3x + 9
2x + 3x = 9 + 6
5x = 15
x = 15/5
x= 3

c) 20x - 12 -192 + 64x -36x + 12 = 96
20x + 64x - 36x = 96 + 12 +192 - 12
48x = 288
x= 6

d) 5x + 5 + 6x + 12 = 9x + 27
5x + 6x -9x = 27- 5 - 12
2x = 10
x = 10/2
x = 5

e) 18x = 65 + 43
18x = 108
x= 108/18
x= 6

f) 23x + 17x = 14 + 16
40x = 30
x= 30/40
x= 3/4