文档介绍:+x)+x=÷2
2(X+X+=
25000+x=6x
3200=450+5X+X
=6
12x-8x=
=
x+=
+x)+x=÷2
2(X+X+=
25000+x=6x
3200=450+5X+X
=6
12x-8x=
=
x+=
=
91÷x=
X+=
15x=3
7(x-2)=2x+3 ×8-2x=6
3x+9=27 ×3=
18(x-2)=270 410-3x=170
12x=300-4x 3(x+=21
7x+= +8=43
3x÷5= 6x-3x=18
*2X=15 3x-8=16 30÷x+25=85 +18=3x
5×3-x÷2=8 +x+21=56 =
÷x= x+2x+18=78 2(X+X+= x+=
= (200-x) ÷5=30 25000+x=6x =
x÷=90 (x-140) ÷70=4 3200=450+5X+X 91÷x=
9x-40=5 (x+6)=× =6 X+=
x÷5+9=21 4= 12x-8x= 15x=3
48-27+5x=31 7+x)= *2X=15 3x-8=16
7(x-2)=2x+3 ×8-2x=6 5×3-x÷2=8 +x+21=56
3x+9=27 ×3= ÷x= x+2x+18=78
18(x-2)=270 410-3x=170 = (200-x) ÷5=30
12x=300-4x 3(x+=21 x÷=90 (x-140) ÷70=4
7x+= +8=43 9x-40=5 (x+6)=×
3x÷5=
6x-3x=18
x÷5+9=21
4=
30÷x+25=85 +18=3x 48-27+5x=31 7+x)=
18(x-2)=270