X+X*1/5=150怎么算

X+X*1/5=150怎么算 (x^10-x^5+1)/(x^2+x+1) 怎么算?(x^10-x^5+1)/(x^2+x+1)=（x^8-x^7+x^5-x^4+x^3-x+1) 怎么算6/x+6/x+5=1,7x-x的平方=30, (x-1)(x-2)(x-3)(x-4)-(x^2-5x)^2-10(x^2-5x)怎么算? x-1/x-2-x-3/x-4=x-2/x-3-x-4/x-5怎么做? 4x=5x怎么算 x+8=5x怎么算 5x-60=x怎么算 x(x+5)=0怎么算? 1.2x=x+5怎么算 X-48=5x怎么算? 2X=5X怎么算? 2x=5x 怎么算 9X=1/X怎么算 X+(X-1)=90,怎么算? x/150+100-x/90=1怎么算啊, 3(1/3x-1/5x)=x-1-1/3x-1/5x 这道题怎么算? 2(x-1)(x+5)-3(x-2)-4x=2x的平方+7方程题怎么算?