Question

a)x/7-2=-1 b)x+3=1/2 c)5x/2+1/3=5 d)x/2-3/4=9 e)3x/2-1/4=9

Answer 1

a) x/7 - 2 = -1
x/7 = -1 + 2
x = 1.7
x = 7

b) x + 3 = 1/2
   x = 1/2 - 3
2 x = 1 - 3.2
2x = 1 -6
x = -5/2

c) 5x/2 + 1/3 = 5

MMC: 6

3.5x + 2.1 = 5.6
15x + 2 = 30
15x = 30-2
x = 28/15

d) x/2 - 3/4 = 9

MMC: 4

2x - 3 = 4.9
2x - 3 = 36
2x = 39
x = 39/2

e) 3x/2 - 1/4 = 9
MMC: 4

2.3x - 1 = 4.9
6x - 1 = 36
6x = 36 + 1
x = 37/6