精品文档精品文档(0.5+x)+x=9.8÷22(X+X+0.5)=9.825000+x=6x3200=450+5X+XX-0.8X=612x-8x=4.87.5 ×2X=151.2x=81.6x+5.6=9.4x-0.7x=3.691÷x＝1.3X+8.3=10.715x＝33x－8＝167(x-2)=2x+33x+9=27 18(x-2)=27012x=300-4x7x+5.3=7.43x÷5=4.830÷x+25=85 精品文档精品文档1.4 ×8-2x=66x-12.8 ×3=0.06410-3x=170 3(x+0.5)=210.5x+8=436x-3x=187(6.5+x)=87.5 1.5x+18=3x5×3-x ÷2=80.273 ÷x=0.351.8x=0.972x÷0.756=909x-40=5x÷5+9=2148-27+5x=3110.5+x+21=56x+2x+18=78(200-x) ÷5=30(x-140) ÷70=420-9x=1.2 ×6.25 0.1(x+6)=3.3 ×0.4精品文档精品文档(27.5-3.5)÷x=4x+19.8=25.85.6x=33.69.8-x=3.8 75.6 ÷x=12.65x+12.5=32.3 5(x+8)=102x+3x+10=703(x+3)=50-x+35x+15=603.5-5x=20.3 ×7+4x=12.5x÷1.5-1.25=0.754x-1.3 ×6=2.66x+12.8=15.8150×2+3x=6902x-20=43x+6=182(2.8+x)=10.4(x-3) ÷2=7.513.2x+9x=33.3精品文档精品文档3x=x+100x+4.8=7.26x+18=483(x+2.1)=10.512x-9x=8.713(x+5)=1692x-97=34.23.4x-48=26.842x+25x=1341.5(x+1.6)=3.62(x-3)=5.865x+7=429x+4×2.5 ＝914.2 x+2.5x ＝13410.5x+6.5x=5189x-43x=9.25x-45=1001.2x-0.5x=6.323.4=2x=564x-x=48.64.5x-x=28精品文档精品文档X-5.7=2.1515 5X-2X=183X+0.7=5 3.5 ×2= 4.2+x26×1.5= 2x+100.5 ×16―16×0.2=4x13 9.25 －X=0.403 16.9 ÷X=0.323x=14x＋14x＋14x=653－5x＝801.8 +6x ＝546.7x －60.3 ＝6.79＋4x＝402x+8=1623x-14x=14
