1.解下列方程:(1)9Y=6Y-6 (2)8X=4X+1 (3)7X-6=-5X (4)-12/5X=-1 (5)-4X=4 (6)-X=0
问题描述:
1.解下列方程:(1)9Y=6Y-6 (2)8X=4X+1 (3)7X-6=-5X (4)-12/5X=-1 (5)-4X=4 (6)-X=0
答
1.-2
2.1/4
3.1/2
4.5/12
5.-1
6.0
答
y=-3
x=1/4.
x=1/2.
x=5/12.
x=-1
x=0
答
(1)9Y=6Y-6 :3y=-6,y=-3.
(2)8X=4X+1:4x=1,x=1/4.
(3)7X-6=-5X :12x=6,x=1/2.
(4)-12/5X=-1 :x=5/12.
(5)-4X=4:x=-1.
(6)-X=0:x=0.