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时间:2020-05-16
《七上解一元一次方程100道练习题.docx》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、3-xx+41.2x+1=732.=23112.5x-2=833.(x+1)=(2x-3)37113.3x+3=2x+734.(x+1)=(x-1)432x-1x+24.x+5=3x-735.=-134115.11x-2=14x-936.(x-1)=2-(x+2)25116.x-9=4x+2737.(x+14)=(x+20)74111117.x=-x+338.(x+15)=-(x-7)4252331138.x=x+1639.x-=24249.2x+6=17x-5340.=10.10x-3=94811.5x-2
2、=7x+82x-15x+141.=356812.1-x=3x+2219x-242.x-7=13.4x-2=3-x2614.-7x+2=2x-41143.x-(3-2x)=125215.-x=-x+152x+15x-144.-=11x3616.2x-=-+233145.(2x+14)=4-2x717.4(x+0.5)+x=732946.(200+x)-(300-x)=30010102518.-2(x-1)=447.(83x-1)-(95x-11)-(22x-7)=3019.5(x-1)=1111148.x+=
3、x-20.2-(1-x)=-223450.5x-10.1x+221.11x+1=5(2x+1)49.-=-10.20.322.4x-(320-x)=3x-1x+250.-=1223.5(x+8)-5=00.30.524.2(3-x)=9125.-3(x+3)=2451.2x1x4226.-2(x-2)=1227.1(22-3x)=4x+452.0.8x0.10.5x0.72228.6-(3x+)=153353.x42x3x2229.(2200-15x)=70+25x30.(32x+1)=1
4、23x17xx+2x54.31.=3654x12x3x178.2[(x+3)-2(x+1)]-5=055.14632(x3)x2x279.3x-1632632123x3x456.[(x1)2]x80.1.6232320.150.2111x281.{[(4)6]8}111x1103x975357.2[1(x)](2x)332382.3x=2x+583.2y+3=y-1111158.(2x3)(2x4)(2x5)(2x6)84.7y
5、=4-3y23452159.5x+2=7x-885.-y=5360.72x134x123x21086.10x+7=12x-5-3x87.8x-4+2x=4x―35x1761.88.2(3x+4)=6-5(x-7)63712x2x45x1262.2y112y2y189.12232362x1x2163.66211190.x[x(x)]23222264.2x12x2232(2x1)0.220x1x13x
6、x91.2.53.565.10.010.223221234113x2x34x66.[(x)8]x192.(x5)4324223551267.7x12(x)8(6x9)3234x1.55x0.81.2x93.3218xx0.50.20.168.x26921xx269.(x1)30%(100x)25%x94.x-=-153623x5xx70.22340.4y0.9y50.30.2y95.-=0.52
7、0.3111171.x135164321196.3(x+2)-(2x-3)=2(2x-3)-(x+2)72.2(2x-1)-4(4x-1)-5(2x+1)-19=0323x13x5x4173.121111346297.{[(x-2)-2]}-2=033330.4x0.90.1x0.50.030.02x74.0.50.20.0398.5(y+8)―5=4(2y―7)32112x75.[(x1)2]2233x23x2342399.x
8、(1)323676.2{3[4(5x-1)-8]-20}-7=11.88x1.33x5x0.4100.77.2(0.3x-4)-5(0.2x+3)=91.220.3答案1.x=328135.x=-67.x100.x=2.x=259103.x=436.x=3368.x4.x=637.x=-28575225305065.x=38.x=-69.x31635739.x=5166.x=
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