Question

ajudaa

resolva as equações

a) 81/3x=1

b) 1=29/2x-3

c) 2x-1/41=-13/41


d)1/5x=0

e) 0.x=0

Answer 1

a) 81
....__..= 1
....3X

81 = 3X

3X = 81

X = 81
......__
.......3

X = 27


b) 1 = ..29
. ......_____
.........2X - 3

2X - 3 = 29

2X = 29 + 3

2X = 32

X = 32
......___
.........2

X = 16


c) 2X - 1 = - 13
..._____.....___
.......41...........41

41(2X - 1) = 41 (- 13)

82X - 41 = - 533

82X = - 533 + 41

82X = - 492

X = - 492
......_____
..........82

X = - 6


d) 1/5x = 0

.....1 = 5x (0)

X = 9


e) 0.X = 9

.......X =0