一元一次方程计算题
(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+-2x=100-9x (9)3(x-7)-2[9-4(2-x)]=22
(11) 2x-10.3x=15
(6)2(x-2)-3(4x-1)=9(1-x)
(8)15-(8-5x)=7x+(4-3x)
(10)3/2[2/3(1/4x-1)-2]-x=2
(12) 0.52x-(1-0.52)x=80
1
(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) (18) 3(20-y)=6y-4(y-11) (20) 3[4(5y-1)-8]=6 (22)(x+1)-3(x-1)=1-3x; 3x14x21(24)25 (17) 18x+3x-3=18-2(2x-1) (19) -(x/4-1)=5 (21)34x2314x; (23)(x-2)-2(4x-1)=3(1-x). x4(x5)x225)52;2
(x3x3(26)36x42.4x4x;(27)0.52.5 ; (28)450.1x0.25 [4(x4)5x10]0.1x2;(29)(32) (33)B部分
1、 2、 3、 5、 6、 7、
4、
3
8、12(2x-3)=4x+4 9.
2x12x11yy21(2x+14)=4-15x 10. = 11. +=3+2y76312.
2(x1)5(x31)61 14、46x0.01-6.5=0.022x0.02-7.5
340.1x0.90.20.03-x0.71 4
13.