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2+(x+2)=3(x-1) 2-x+2=3(x-1) 2-(x+2)=3(1-x) 2-(x+2)=3(x-1)
将方程3x+=去分母后,得15x+5(1-x)=x+2 将方程-=1去分母后,得2(2x-1)-3(x+3)=1 将方程3x-=-去分母后,得12x-2(3x+5)=-(7-x) 将方程+3=2x去分母后,得3x-1+6=2x
5x﹣1﹣2=1+2x 5x﹣1﹣6=3(1+2x) 2(5x﹣1)﹣6=3(1+2x) 2(5x﹣1)﹣12=3(1+2x)
3x-2(x-1)=1 3x-2(x-1)=6 3x-2x-2=6 3x+2x-2=6
2+(x+2)=3(x-1) 2-x+2=3(x-1) 2-(x+2)=3(1-x) 2-(x+2)=3(x-1)
3 x-3 =1+2 x , 3 x-9 =1+2 x , 3 x-3 =2+2 x , 3 x-12=2+4 x ;
2y=18-3(y+1) 2y=3-3(y-1) y=3-(y-1) 2y=18-3(y-1)
5x-1-2=1+2x 5x-1-6=3(1+2x) 2(5x-1)-6=3(1+2x) 2(5x-1)-12=3(1+2x)
2y=18-3(y+1) 2y=3-3(y-1) y=3-(y-1) 2y=18-3(y-1)
x-2=2x x2-2x=2x x-2=x x=2x-4
x-1=1+2x x-6=3(1+2x) 2x-3=3(1+2x) 2x-6=3(1+2x)
2+(x+2)=3(x-1) 2-x+2=3(x-1) 2-(x+2)=3 2-(x+2)=3(x-1)