0.75:3.75=6.4:x

0.75:3.75=6.4:x 2.6x-x-0.1x=0.75 X+25%X=3.75 0.75x+x=17.5 x-25%x=0.75 x-0.75x=1. （X+X)+(X-X)+(X*X)+(X/X)=100 x+x+x+y+y=6.4 y+y+y+x+x=7.1 怎么算? 10x-3.14*x*x*0.25=3.14*x*x*0.75 怎么算 1 - 7分之4x = 9分之1 3分之2x + 2分之1x = 77 75%x - 2.5 = 5 1 + 25%x = 3.75 x - 7分之4 x =9分之13.5x - 3.6 + 6.4 = 9.8 15 + 20%x = 186分之5x + = 8分之5 x + 60%x = 48x - 10%x = 43.2 十到解方程,需完整些, 1 - 7分之4x = 9分之1 3分之2x + 2分之1x = 77 75%x - 2.5 = 5 1 + 25%x = 3.75 x - 7分之4 x =9分之13.5x - 3.6 + 6.4 = 9.8 15 + 20%x = 186分之5x + = 8分之5 x + 60%x = 48x - 10%x = 43.2 十到解方程,需完整些, 过程X+25%X=3.75 12X+10X=6.4 求X的值 6.4x=x-420,求x等于多少, 求未来数X X—20%X=6.4 x-1=0.75x 能求x么? 0.15+x-0.75x=25求X 12.5x-0.75x+3=7.3-1.5x