0.4×(x+)=6
首先:2.4x÷(2x-0.7)×(2x-0.7)=1.2
X=
x=
1.5x+6=21 1.3x+0.9x=3.3
4.3(x-2)=27.95 (100-3x) ÷2=0.08
①x-2.7=13.3
②x+16=56
③2x+5x=14.7
④3(x-2.4)=33
⑤7x+18=32
⑥(2x-5)÷6=4