(-1)*(-1)+15+1(10) 3-(-5)*3/(-15) (11) 6*(-14)-(-14)+(-13)(12) (-15)*(-13)-(-17)-(-4) (13) (-13)-(-9)*16*(-12)(16) (-1)+4*19+(-2) (17) (-17)*(-9)-20+(-6)(18) (-5)/12-(-16)*(-15)(19) (-3)-13*(-5)*13 5+(-7)+17-10(21) (-10)-(-16)-13*(-16) (22) (-14)+4-19-12 (23) 5*13/14/(-10) (24) 6+(-12)+15-(-15)(26) 15/9/13+(-7) (27) 2/(-10)*1-(-8)(28) 11/(-19)+(-14)-5 (29) 19-16+18/(-11) (30) (-1)/19+(-5)+131. 2100-2153+2255 800-(2000-96008)34. 4048-(1472+328)5 35. (488+344)(202-194) 40.(154-76)(38+49) 41. 3800-1369-798 9189(108-99)44. (8645+4040)5 46.8080-1877+18813 47. (5011-4385)+3397 2300-1122(21-15)49 50.(7353+927)(801-792) 一元 一次方程: 7(2x-1)-3(4x-1)=4(3x+2)-1; (5y+1)+ (9y+1)+(1-3y); 20%+(1-20%)(320-x)=32040%2(x-2)+2=x+1 2(x-2)-3(4x-1)=9(1-x) (5-x)/22(x+1) /3=5(x+1) +1=(2x+1)/4 (5-2)/2 (1-x)/2(x-2)/2 15-(8-5x)=7x+(4-3x)3(9-7)-2[9-4(2-x)]=22 3/2[2/3(1/4x-1)-2]-x=22(x-2)-3(4x-1)=9(1-x) 11x+64-2x=100-9x 15-(8-5x)=7x+(4-3x) 7)-2[9-4(2-x)]=223/2[2/3(1/4x-1)-2]-x=2 2(x-2)+2=x+1 1.7(2x-1)-3(4x-1)=4(3x+2)-1 2.(5y+1)+ (1-y)= (9y+1)+ 2)-4]=x+2 4.20%+(1-20%)(320-x)=32040% 2)+2=x+16.2(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 11.5x+1-2x=3x-2 12.3y-4=2y+1 13.87X*13=5 14.7Z/93=41 15.15X+863-65X=54 16.58Y*55=27489 17.2(x+2)+4=9 18.2(x+4)=10 19.3(x-5)=18 20.4x+8=2(x- 22.6(x/2+1)=1223.9(x+6)=63 24.2+x=2(x-1/2) 25.8x+3(1-x)=-2 26.7+x-2(x-1)=1 27.x/3 -5 (5-x)/228.2(x+1) /3=5(x+1) 29.(1/5)x+1 =(2x+1)/4 30.(5-2)/2 15x-8(5x+1.5)=18*1.25+x 3X+189=521 4Y+119=22 3X*189=5 8Z/6=458 3X+77=59 4Y-6985=81 87X*13=5 7Z/93=41 15X+863-65X=54 15x+863-65x=5412. 12.3(x-2)+1=x-(2x-1) 13. 11x+64-2x=100-9x 14. 14.59+x-25.31=0 15. x-48.32+78.51=80 16. 820-16x=45.58 (x-6)7=2x18. 3x+x=18 19. 0.8+3.2=7.2 0.64)=0.5422. x+12.5=3.5x 23. 8x-22.8=1.2 24. 50x+10=6025. 3^20x+50=11027. 2x=5x-328. 90=10+x29. -(x/4-1)=510 3[4(5y-1)-8]=6 (1)-3x-6x2=7 (3)3y-4=2y+1(4)3y-4=y+3 (5)3y-y=3+4 (6)0.4x-3=0.1x+2 (7)5x+15-2x-2=10 (8)2x-4+5-5x=-1 (9)3X+189=521 (10)4Y+119=22 (11)3X*189=5 (12)8Z/6=458 (13)3X+77=59(14)4Y-6985=81