2x:16-2x=2.5x:20-2.5x
3个回答
原式=2x:16=2.5x:20-0.5x
2x/8=2.5x/10-x 全部乘40,得
10x=10x-x
所以x=0
怎么会没解
相关问题
(x2-5)2+8(5-x2)+16
(100-2x-10x)/5=20-2x-2/5*x
解方程:(1)16x-40=9x+16 (2)4x=20/3x+16 (3)2(3-x)=-4(x+5)
[(6-5x+x^2)/(x^2-16)]/[(x-3)/(4-x)]*[(x^2+5x+4)/(4-x^2)]
解方程:(x^2+16x+208)^(.5)=8+(x^2-16x+208)^(.5)
4/5x4+2/5x2+1/5x16
解下列方程16x-40=9x+164x=20/3x+162(3-x)=-4(x+5)3(-2x-5)+2x=91/2(x
5*20 %x+2=2*( x+2)
0.5×16-16×0.2=4X 2(X-3)=5.8 (0.5+X)+X=9.8+2 25000+X=6X 7(X-2
5x-2=7x+8 3=3/2x+16 1-3/2x=3x+2/5