1. 2x-2/3(x+3)=-x+3 2. 2(10-0.5y)=-(1.5y+2)
1. 2x-2/3(x+3)=-x+3
两边乘型弊启卜如卜誉3
6x-2x-6=-3x+9
4x+3x=9+6
7x=15
x=15/7
2. 2(10-0.5y)=-(1.5y+2)
20-y=-1.5y-2
1.5y-y=-2-20
0.5y=-22
y=-44
(1)
2x-2/3(皮明x+3)=-x+3
6x-2(x+3)=3(燃帆告-x+3)
6x-2x+3x=6+9
x=15/轿拿7
(2)
2(10-0.5y)=-(1.5y+2)
20-y=-1.5y-2
0.5y=-2-20
y=-44
1、指陪解:原式=2x-2/3x-2=-x+3
4/唯山蠢3x+x=3+2
7/3x=5
x=15/7
2、解:原式唯锋=20-y=-1.5y-2
-y+1.5y=-2-20
0.5y=-22
y=-44