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整数化简题目带答案

1、a+(2b-3c-4d)=_________;2、a-(-2b-3c+4d)=________;3、(m-n)-3(z-p)=________;4、3x-[5x-(2x-1)]=________;5、4x2-[6x-(5x-8)-x2]=___________;二、化简(28分)1、(1)(3x+5y)+(5x-7y)-2(2x-4y); (2)5ab-{1、a+(2b-3c-4d)=2

1\2:4 0.8:3 6:4 3.5:1又2/1 4:0.16=350:800/7:16=2450:800:1120.12:5/3 =120:500/3=360:500=36:50=18:2510.4:7.2 =104:72=52:36=26:18=13:9 0.6:9/2=6:90/2=12:90=2:157/9:0.18 =700/9:18=700:162=350:81

1)判断题:判断下列方程是否是一元一次方程:①-3x-6x^2=7(x) ③5x+1-2x=3x-2 (x) x=1三.化简、化简求值 化简求值:1、-9(x-2)-y(x-5)=0(1)化简整个式子.-9x-xy+23=0(2)

1.2X—[6-2(X-2)] 其中 X=-2 2.(5a+2a2-3-4a3)-(-a+3a3-a2),其中a=-2 3.(2m2n+2mn2)-[2(m2n-1)+2mn2+2],其中m=-2,n=2 4.(5a+2a2-3-4a3)-(-a+3a3-a2),其中a=-2 5、(2

(一)填空3.3ab-4ab+8ab-7ab+ab=______.4.7x-(5x-5y)-y=______.5.23a3bc2-15ab2c+8abc-24a3bc2-8abc=______.6.-7x2+6x+13x2-4x-5x2=______.7.2y+(-2y+5)-(3y+2)=______.11.(2x2-3xy+4y2)+(x2+2xy-3y2)=______.12.2a-(3a-2b+2)+(3a-4b-

0.02吨=20千克.故20千克:0.02吨=1:1

25道分数化简题我没有!1. 3/7 * 49/9 - 4/3 2. 8/9 * 15/36 + 1/27 3. 12* 5/6 2/9 *3 4. 8* 5/4 + 1/4 5. 6÷ 3/8 3/8 ÷6 6. 4/7 * 5/9 + 3/7 * 5/9 7. 5/2 -( 3/2 + 4/5 ) 8. 7/8 + ( 1/8 + 1/9 ) 9. 9 * 5/6 + 5/6 10. 3/4 * 8/9 - 1/3 11. 7 * 5/49 + 3/14 12. 6 *( 1/2 + 2/

(4)2(ab+ab)-2(ab-1)-2ab-2,其中a=-2,b=2=2ab+2ab-2ab+2-2ab-2=03.3ab-4ab+8ab-7ab+ab=______. 4.7x-(5x-5y)-y=______. 5.23a3bc2-15ab2c+8abc-24a3bc2-8abc=______. 6.-7x2+6x+13x2-4x-5x2=______. 7.2y+(-2y+5)-(3y

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