解一元一次方程计算题专练
(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
(7)11x+64-2x=100-9x
(11) 2x-10.3x=15
(13) x/2+3x/2=7
15) 3x+5(138-x)=540
(17) 18x+3x-3=18-2(2x-1)
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(6)2(x-2)-3(4x-1)=9(1-x) (8)15-(8-5x)=7x+(4-3x) (12) 0.52x-(1-0.52)x=80 (14) 3x+7=32-2x ( (16) 3x-7(x-1)=3-2(x+3) (18) 3(20-y)=6y-4(y-11) '. (21) 31x23x; (22)(x+1)-3(x-1)=1-3x; 443x14x2x4x21(x5)52; (24)2 (25)5 x3x3x4xx42.460.52.5 ; (26)3; (27) (28) 50.1x0.2[(x4)5x10]x2; 40.1(29) (30) (31) (32)
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