200x+50(22-x )=1400
①200x+50(22-x)=1400
(x-22)+(x-24)+(x-27)+(x-20)=x
5*(x-2)=4*(x+3) 2x+(50-x)*4=140 3x-(8-x)=20*4 200x=(x-0.5)*2
(X+X)+(X-X)+(X*X)+(X/X)=100
x+x/3+2x=200
x-4x=102 x-0.8x=22
(4x+2)/x+(4x-22)/(x-5)=(x-6)/(x-4)+(7x+9)/(x+1)
解方程 (x+5)(200-5x)=(x+5)(200-5x)+x(x+5)
求解几道方程.1/2x-20+1/2【x-(1/2x-20)】+20=x-50 x/(200-400/3)+x/(200
x+x=x+15
75%X-50=22
(x-22)+(x-24)+(x-27)+(x-20)=x怎么解