a) 4x +15=-5 \ - 15
4x = - 20 \ :4
x = - 5
b) 2x + 7 = 4x - 3 \ - 7 -4x
- 2x = - 10\ : (-2)
x = 5
c) - 2x + 3 + 4(2x +3) = - 6
6x + 15 = - 6 \ - 15
6x = - 21 \ :6
x = - 3,5
d) 3x - 7= 2x +1 \ +7 -2x
x = 8
e) x/2 - 3/4 = 7/8 + x/4 \ +3/4 - x/4
x/4 = 13/8 \ × 4
x= 6,5
g) x+ 4/5 +2x + 9/10 = - 2-x/2 \ - 4/5 - 9/10+x/2
3,5 x = - 3,7 \ : 3,5
x= - 37/35
