Răspunsuri

2014-10-13T21:56:02+03:00
6x-3+25=68
6x-3=68-25
6x-3=43
6x=46 | :2
3x=23
x=23/3

1 5 1
2014-10-13T21:59:06+03:00
3(2x-1)+25=68 | -25
3(2x-1) = 43 |:3
2x-1 = \frac{43}{3} |+1
2x=  \frac{43}{3}  +  \frac{1}{1}   ( \frac{1}{1} se am plifica cu 3)
2x=  \frac{46}{3} |:2
 x=  \frac{46}{3} :2
 x=  \frac{46}{3} *  \frac{1}{2}
 x=  \frac{23}{3}