初一下学期数学300道计算题
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发布时间:2022-04-23 20:37
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时间:2023-10-09 05:09
(1)7(2x-1)-3(4x-1)=4(3x+2)-1;
(2) (5y+1)+ (1-y)= (9y+1)+ (1-3y);
(3)[ (1/4x-3)-4 ]=x+2;
(4)20%+(1-20%)(320-x)=320×40%
(5)2(x-2)+2=x+1
(6)2(x-2)-3(4x-1)=9(1-x)
(7)11x+64-2x=100-9x
(8)15-(8-5x)=7x+(4-3x)
(9)3(x-7)-2[9-4(2-x)]=22
(10)3/2[2/3(1/4x-1)-2]-x=2
(11)2x-10.3x=15
(12)0.52x-(1-0.52)x=80
(13)x/2+3x/2=7
(14)3x+7=32-2x
(15)3x+5(138-x)=540
(16)3x-7(x-1)=3-2(x+3)
(17) 18x+3x-3=18-2(2x-1)
(18)3(20-y)=6y-4(y-11)
(19)-(x/4-1)=5
(20)3[4(5y-1)-8]=6