200x+50(22-x )=1400
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200x+50(22-x)=1400200x+50(22-x)=1400200x+50(22-x)=1400200x+50(22-x)=1400200x+1100-50x=1400150x=300x=
200x+50(22-x )=1400
200x+50(22-x )=1400
200x+50(22-x )=1400
200x+50(22-x )=1400
200x+1100-50x=1400
150x=300
x=2
50x+200(22-x)=1400
200x+50(22-x )=1400
解方程:8(X-2)=2(X+7) 200X+50X(22-X)=1400
①200x+50(22-x)=1400②10x-5(10-x)=55③3(x+5)+2x=5×6
50X=200+X*X
怎么解方程:200x+50*(22-x)=1400
200x+50(22-x)=1400要过程
200x+50(22-x)=1400要过程
x+ x+(x*50%)=1.5X?
(100-2x)(50-2x)=3600 5000-200x-100x+4x(2)=3600 4x(2)-300x+1400=0(100-2x)(50-2x)=36005000-200x-100x+4x^2=36004x^2-300x+1400=0为什么不是5000-3600=200x+100x+4x^2=300x+100x+4x^2-1400=0
matlab中a=[x(11)/x,x(12)/x;x(21)/x,x(22)/x;x(31)/x,x(32)/x;x(41)/x,x(42)/x;x(51)/x,x(52)/x]咋错了
250x+50*(22-x)=1400的过程
x/40+x/50=1+1/200*x
3X+(2X-22)=50
x+50=80%x+200
x^2-50x+200=0
x+3x+x-2+x+x+50%x=188 求x
(X+X)+(X-X)+(X*X)+(X/X)=100