6x+20=(10x+6x+20)*2/5
1个回答
6x+20=(10x+6x+20)*2/5
6x+20=(16x+20)*2/5
6x+20=6.4x+8
0.4x=12
x=30
相关问题
(6x+20)/10x=2/(5-2)
(4X+20)/4=(6X-20)/5怎样算 (4X+20)/4-2=(6X-20)/5 (4X+20)/4+2=(6X
2/(3x+6)+3/(5x^2+20x+20)
(x/6+x/6+20):(x-x/6-x/6-20)=7:5具体怎么解?
3X+6=12 40-4X=20 5+6X=35 18=2X-6 20=38-2X = = = = = = = = =
3/10(20-x)-1/2(6+13x/5)=0
(2X2)/1X3+(4X4)/(3X5)+(6X6)/(5X7)+...+(20X20)/(19X21)==?
(6x+5)(6x-5)-(6x-1)(6x-1)=-20
{20%x+25}/{x-20%x-25}=5/6
{20%x+25}/{x-20%x-25}=5/6