3.8+1.2 1.5x8 0.3x101 1.2x0.5 0.84/6 .9x.45 1.25x8 9.6/1.6 68-4.4x =24
x/4.5=1.2 7x/3=8.19 8.86-1.95/.65 3+7x=24 x/4=20 0.8x=1 x+45=55 x-0.3=0.1
2x+18=30 9x/3=5.4 308x=76 5.6+x=13 4x-12=12 x-4=5 x+4.5=603 x-0.5=1.3
x+19=28 x-5.2=4.8 x+17.5=80 0.12x=24 0.4x=196 3.8x=76 1.5-x=1.5 x+0.8=9
18.8+x=25 5.6+x=13 4.8x=2.4 9x-0.45x=25.8 3(x-1.8)=9.6 6x-8.3=1.9 x-0.05x=20.9
11.6x13 116x1.3 157x0.9 3.14x7 3.24x27 0.15x45 40x2.5 1.03x2.5 2.9x0.34
7.9x1.43 0.17x0.83 130x0.06 56.5x0.24 474x0.95 1.3x0.96 2.87x3.15 3.7x1.5
0.6+0.4x3 4.2x2+0.1 2.5x0.8x0.7 3x0.2x0.5 2.5+1.5x6 2.8x0.09-0.09 7.2x29.5x0.1
(27.8-15.6)x0.8 0.48x20.2-4.2 2.25x0.4+0.1 1.5x2.3x0.8 3.19x2.7x0.9 50.4x2.3-1.7
2.05x16-8.23 1.5+(15-10)x0.5 3.36x7.2 83x0.29 4.7x1.35 9.06x0.48 2.6x302
32.5x2.9+3.45 32x1.25x2.5 10.17/9 85.35/5 25.2/12 43.5/15 0.15/6 0.19/65
0.48/8 3.90/78 7.9/20 16.8/7 1.45/25 1.44/3.6 6.84/0.9 5.6/0.028 31.04/3.2
42.72/0.48 23.4/5.2 0.36/100 72/0.9 6.72/6.4 9.12/57 2.295/0.75+6.52
9.3/0.31/0.3 1.5+3.5/2x0.8 29.12/(0.8x0.65)
不知道这些你有没有用?我只出题目.