Question

Решите уравнения
1) 5х - 9=0
2)-3х + 9 =0
3)5х-3 +-10х
4)-7х+8=9
5)4х+4=6х-5
6)9(х-7)=-х
7) 6(5-3х)=-8-7
8)-7х+9 (2+х)=-4х+3
9)х+2/6 -х/7 = 2

Answer 1

  03.04.2014 5x=9. 8-10x+15-13+6x=0
X=9/5. -4x=-6
X=3/2