1) (2x+1/3)=2- (x-2/2) 2) 2(x-1)/3=x-1 3) 1+(3-x/2)=(x+4/3)-2 4)(x/0.7)-(0.17-0.2x/0.03)=1

问题描述:

1) (2x+1/3)=2- (x-2/2) 2) 2(x-1)/3=x-1 3) 1+(3-x/2)=(x+4/3)-2 4)(x/0.7)-(0.17-0.2x/0.03)=1

1.2x+x/2=2-1/3+15x/2=8/3x=16/152.2x/3-x=2/3-11/3=1x/3x=13.1+3-4/3+2=x/2+x14/3=3x/2x=28/94.x/0.7-0.2x/0.03=1+0.17x/0.7-x/0.3=1.17x/0.21=1.17x=1.17*0.21=0.2457