2.4- (x-4)/2.5=3/5x 怎么写
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2.4- (x-4)/2.5=3/5x 怎么写
2.4- (x-4)/2.5=3/5x 怎么写
2.4- (x-4)/2.5=3/5x 怎么写
2.4- (x-4)/2.5=3/5x 两边乘512-2(x-4)=3x12-2x+8=3x2x+3x=205x=20x=4互相帮助
解方程3x=x+4,2.6x-8=2.4x,4x+12=10x+3 ,7x=12-×,2.5x=2x+4,5x+3=6x+1,详列计算,
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4
解方程(1)1/4x-1/12x=1/3 (2)x+1/2-x-1/3=1 (3)2x+1/3-(x-5)=2/3 (4)x+4/5-x+2/10=x-2/2(5)2.4-x-4/2.5=3/5x (6)x-2/3-x-1/2=x+1
解方程.列式(1)1/4x-1/12x=1/3 (2)x+1/2-x-1/3=1 (3)2x+1/3-(x-5)=3/2(4)x+4/5-x+2/10=x-2/2 (5)2.4-x-4/2.5=3/5x (6) x-2/3-x-1/2=x+1
求x的值 2.5:x=7.5:0.5 x= 2.4x+28.8=48 x= x-3分之2x=1.8 x= (1+5分之3)x=5分之2 x=x-3=3分之2 x= 15分之6:x=2:3 x= x:20分之7=4:x= x:0.6=4.5:2 x=急,
x-3/4x=(108-x)-4/5x
4x-3x(20-x)=5x
(X-5)(X+3)+(X-2)(X+4)=26
x=260+x/3+x/4+x/5求解
5x-x=2.4 1.5x-x=1 6.6x-6x=1.8 2x-2/3x=3/4 解方程
初二分式方程x+3/x+4+x+8/x+9=x+4/x+5+x+7/x+8解(x+3/x+4)+(x+8/x+9)=(x+4/x+5)+(x+7/x+8)