Question

b)
+1 = 11 _ x
16
4
c)
3
2(4 - x)
5
712x +1)
= 0
15
10
ME AJUDAAA PFV​

Answer 1

Oie, Td Bom?!

b)

[4 - x]/8 + 1 = 11/16 - x/4

16([4 - x]/8 + 1) = 16(11/16 - x/4)

16 . [4 - x]/8 + 16 = 16 . 11/16 - 16 . x/4

2(4 - x) + 16 = 11 - 4x

8 - 2x + 16 = 11 - 4x

24 - 2x = 11 - 4x

- 2x + 4x = 11 - 24

2x = - 13

x = - 13/2

c)

1/10 - [2(4 - x)]/5 - [7(2x + 1)]/15 = 0

1/10 - [8 - 2x]/5 - [14x + 7]/15 = 0

30(1/10 - [8 - 2x]/5 - [14x + 7]/15) = 30 . 0

30 . 1/10 - 30 . [8 - 2x]/5 - 30 . [14x + 7]/15 = 0

3 - 6(8 - 2x) - 2(14x + 7) = 0

3 - 48 + 12x - 28x - 14 = 0

- 59 - 16x = 0

- 16x = 59

x = 59/-16

x = - 59/16

Att. Makaveli1996