Răspunsuri

2014-04-12T14:59:52+03:00
15x-10+3x-48x+78=144-32x-78
18x-48x+68=-32x+66
-30x+32x=66-68
2x=-2
x=-1
1 5 1
2014-04-12T15:00:41+03:00
5(3x-2)+3x-6(8x-13)=16(9-2x)-78
15x-10+3x-48x+48=144-32x-78
-30x+38=66-32x
2x=28
x=14;