9x+4×2.5=91 4.2 x+2.5x=134 10.5x+6.5x=51
x-43x=9.2 5x-45=100 1.2x-0.5x=6.3
23.4=2x=56 4x-x=48.6 13 9.25-X=0.403
X-5.7=2.15 15 5X-2X=18 3.5×2= 4.2+x
26×1.5= 2x+10 0.5×16―16×0.2=4x 16.9÷X=0. 3
X÷0.5=2.6 x+13=33 3 - 5x=80
1.8 +6x=54 6.7x -60.3=6.7 9 +4x =40
15 5X-2X=18 3.5×2= 4.2 x 26×1.5= 2x
0.5×16―16×0.2=4x 9.25-X=0.403 16.9÷X=0.3
3-5x=80 1.8-6x=54 6.7x-60.3=6.7
9 +4x=40 0.2x-0.4+0.5=3.7 9.4x-0.4x=16.2
12-4x=20 1/3x+5/6x=1.4 12x+34x=1
18x-14x=12 23 x-5×14=14 12+34x=56
23x=14x+14 30x12x-14x=1 x-0.7x=3.6下载本文