Răspunsuri

2014-10-11T19:27:10+03:00
3(2x+15) - 15(3-2x)=9-2(4x-1)
6x+30-45-30x=9-8x+2
-24x-15=11-8x
16x=-26
x=- \frac{26}{16} =- \frac{13}{8}