Răspuns:
b)Numitor comun 30
6x+3x+12=5x-5-6x-18+11
9x+12=-x-12
10x=-24
x=(-2,4)
d)Numitor comun 12
6x-15+4x-28=12x+33-85
10x-43=12x-52
-2x=-9
x=9/2
x=4,5
f)Numitor comun 4
12x+16-10x+18=3x+10-2x+12
2x+34=x+22
x=(-12)
b)Numitor comun 8
12x-20-10x-2+8=2x+6-4x+16
2x-14=-2x+22
4x=36
x=9
d)Numitor comun 2
8x-16+3x+7=10x+30-x+5
11x-9=9x+35
2x=44
x=22
f)Numitor comun 6
4x-5-6x-4=3x-3+9
-2x-9=3x+6
-5x=15
x=(-3)
