Question

Resolvati equatia:
a) 2x +3 5/6 = 7 1/9
b) 3 1/2x + 7 5/6 = 16 7/12
c) 2 2/3x -1 5/6 = 2 11/18
d) 16 1/3 - 2x = 5 3/5
e) 5x + 3,7=10,5

Answer 1

a)2x +3 5/6 = 7 1/9
2x=7/9-5/2
2x=-31/18
x=31/36

3 1/2x + 7 5/6 = 16 7/12
31/2 x+75/6=4× 7/3
31/2x+75/6=28/3
93x+75=56
93x=56-75
93x=-19
x=-19/93

2 2/3x -1 5/6 = 2 11/18
2× 2/3x -15/6=11/9
4/3x-15/6=11/9
24x-45=22
24x=22+45
24x=67
x=67/24

16 1/3 - 2x = 5 3/5
16×1/3-2x=3
16/3-2x=3
-2x=3- 16/3
-2x=-7/3
x=7/6

5x + 3,7=10,5
5x=10.5-3.7
5x=6.8
x=1.36