1、(0.5+x)+x=9.821.2x=81.67(x-2)=2x+31.4>8-2x=62(X+X+0.5)=9.8x+5.6=9.43x+9=276x-12.8)3=0.0625000+x=6xx-0.7x=3.618(x-2)=270410-3x=1703200=450+5X+X91力=1.312x=300-4x3(x+0.5)=21X-0.8X=6X+8.3=10.77x+5.3=7.40.5x+8=4312x-8x=4.815x=33x5=4.86x-3x=187.5*2X=153x8=1630力+25=851.5x+18=3x5X3-x-2=810.5+x+21=56(27.5

2、-3.5)x=4x+3x+10=700.273*0.35x+2x+18=78x+19.8=25.83(x+3)=50-x+31.8x=0.972(200-x)5=305.6x=33.65x+15=60x4.756=90(x-140)70=49.8-x=3.83.5-5x=29x-40=50.1(x+6)=3.30475.6*12.60.3>7+4x=12.5x4+9=214(x-5.6)=1.65x+12.5=32.3x+1.5-1.25=0.7548-27+5x=317(6.5+x)=87.55(x+8)=1024x-1.3E=2.620-9x=1.2>6.2513.2x+9x=

3、33.32x-97=34.24.2x+2.5x=1346x+12.8=15.83x=x+1003.4x-48=26.810.5x+6.5x=51150X2+3x=690x+4.8=7.242x+25x=13489x-43x=9.22x-20=46x+18=481.5(x+1.6)=3.65x-45=1003x+6=183(x+2.1)=10.52(x-3)=5.81.2x-0.5x=6.32(2.8+x)=10.412x-9x=8.765x+7=4223.4=2x=56(x-3)2=7.513(x+5)=1699x+4X2.5=914x-x=48.64.5x-x=28139.25-X=0.40

4、39+4x=40x-8=6xX-5.7=2.1516.9-X=0.32x+8=164/5x=20155X-2X=1823x=14x+1423x-14x=142x-6=123X+0.7=5x+14x=65x+7x=87x+7=143.5>2=4.2+x35x=809x-3x=66x-6=026X1.5=2x+101.8+6x=546x-8=45x+6=110.5X1616X0.2=4】x6.7x60.3=6.75x+x=92x-8=101/2x-8=43x-8=3015+6x=279+6x=14x-5/6=76x+6=125-8x=4x+9x=4+73x+7=283x-3=17x+8=15

5、2x+9=173x-7=265x-3x=49-2x=18-4x=69x-x=162x+16=194+5x=96x-7=1224x+x=505x+8=1910-x=87x-9=86/7x-8=414-6x=88x+9=17x-56=18-7x=16-2x=1126X1.5=2x6.7x60.3=6.7x-30=12x+4+8=230.5X1616X0.2=4x9+4x=406x-21=217x-12=89.25X=0.4030.2x0.4+0.5=3.76x-3=6X-5.7=2.1516.9-X=0.39.4x0.4x=16.29x=18155X-2X=18XW.5=2.6124x=204x-

6、18=133X0.7=535x=801/3x+5/6x=1.45x+9=113.5>2=4.2x1.8-6x=5412x+34x=118x-14x=123200=450+5X+X91力=1.312x=300-4x23x5M4=14X-0.8X=6X+8.3=10.77x+5.3=7.412+34x=5612x-8x=4.815x=33x抬=4.822-14x=127.5*2X=153x8=1630r+25=85(0.5+x)+x=9.821.2x=81.67(x-2)=2x+31.4>8-2x=62(X+X+0.5)=9.8x+5.6=9.43x+9=276x-12.8)3=0.0

7、625000+x=6xx-0.7x=3.618(x-2)=270410-3x=1703(x+0.5)=21x0.756=90(x-140)70=418(x-2)=2700.5x+8=439x-40=50.1(x+6)=3.30.418(x-2)=2706x-3x=18x5+9=214(x-5.6)=1.612x=300-4x1.5x+18=3x48-27+5x=317(6.5+x)=87.57x+5.3=7.45X3-x-2=810.5+x+21=56(27.5-3.5)x=40.1(x+6)=3.30.40.273*0.35x+2x+18=784x=4404(x-5.6)=1.61.8x=0.972(200-x)5=3075%x=6(1)甲數是3.5,比乙數多a,乙數是,甲、乙兩數的和是。(2)用a元買了單價為1.8元的西瓜2千克，應找回元。(3)比x少5的數與a相乘的積是。(4)a的5倍減去4.8的差是。(5)a與b的和的一半是。(6)食堂買來a千克大米，吃了b千克，還剩千克。(7)買20支鋼筆共付c元，每支鋼筆的價錢是元。(8)一個工地用汽車運土，每輛車運x噸。一天上午運了6車，下午運了5車。這一天共運土()噸，上午比下午多運土()噸。(9)商場上午賣出電視機10臺，下午