1-0.8*x=0.6 1-0.8*x=0.6

X(X-1)=X 解方程:x/4=30% 36/x=3/4 10/x=2.5/0.8 x/4=1.2/5 X/1.2=1.5/0.6 x/0.4=1.5/6 x/7=0.6/3.5 x/10=0.1/25-3x=8x+1 2(x-2)+2=x+1 3-x=2-5(x-1) 3x=5(32-x) 7(4-x)=9(x-4) 7x-8=2x+27 5x-18=3-2x (7x-4)+3(x-2)=2x+6 2(3x-4)+(4-x)=4x我是六年级的学生,我希望 x*(1+40/100)*0.8-x=15 X=? 5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,解方程,5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,0.8x-0.2+1.2x=1.8,2.4x+0.6+1.6=8 x-4/1x=8/3 x-0.8x=22 3/2x+2/1x=42x-4/1x=8/3 x-0.8x=22 3/2x+2/1x=42 0.5x+3=0.8x+1 （X-1)/0.2 -X/0.8 =10 x-0.8x=1怎么解 x-4/1x=8/3 x-0.8x=22.3/2x+2/1x=42 X+0.8X=? 紧急,谁知道这个matlab优化程序错在哪里了?function y=myfunction(x);y=0.785398*(4.75*x(1)*x(2)^2*x(3)^2+85*x(1)*x(2)*x(3)^2-85*x(1)*x(3)^2+0.92*x(1)*x(6)^2-x(1)*x(5)^2+0.8*x(1)*x(2)*x(3)*x(6)-1.6*x(1)*x(3)*x(6)+x(4)*x(5)^2+x(4)*x(6)^2+28 1-0.8*x=0.6 1-0.8*x=0.6 9x=8x-6 ,8y=4y+1 ,0.6x=3+1/3x和0.02x=0.8x-7. x>=1,x x/x-2+x-9/x-7=x+1/x-1+x-8/x-6, x/x-2+x-9/x-7=x+1/x-1+x-8/x-6, X*0.55+1*0.8=(X+1)*0.6 X*0.55+1*0.8=(X+1)*0.6