Question

解方程3/4x-25%=4 x÷1/4=2/3 95%x-20%x=4.5 xX（3/4+50%=3/20

Answer 1

1.(3/4)x-25%=4(3/4)x-(1/4)=4(3x-1)/4=43x-1=163x=17x=17/3经检验,x=17/3是原方程的根.2.x÷(1/4)=2/3 4x=2/3 x=1/6经检验,x=1/6是原方程的根.3.95%x-20%x=4.5 75%x=4.5(75x/100)=45/10(3x/4)=9/26x=36x=6经检验,x=...