4/7x-2=0.75x+0.5
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4/7x-2=0.75x+0.54/7x-2=0.75x+0.54/7x-2=0.75x+0.54/7x-2=0.75x+0.5…………………………两边同时乘以7则4x-14=5.25x+3.5则1.
4/7x-2=0.75x+0.5
4/7x-2=0.75x+0.5
4/7x-2=0.75x+0.5
4/7x-2=0.75x+0.5…………………………两边同时乘以7
则4x-14=5.25x+3.5
则1.25x=-17.5
则x=-14
4/7x-2=0.75x+0.5
4x-14=5.25x+3.5
1.25x=-17.5
x=-14
原式4/7x-0.75x=0.5+2
-5/28=2.5
x=-14
4/7X-2=3/4X+1/2
16X-56=21X+14
X=-14
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 ||
2x+3x+4x+5x+x+6x+7x=100
12x-2/21x=快点9点之前还有7x-x+2/3x-3(4x-0.5)-2x+(3x-1)-(x+5)
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
5x+2x=33.6,7x-4x=0.75,2x+7x+2.1=12,56x-32x-119=361,解方程
27046=2x( )+7x( )+4x( )+6x( )
47026=4x()+7x()+2x()+6x()
2706=2x( )+7x( )+4x( )+6x( )
(x-2)(x+1)(x+4)(x+7)=19
x-8/x-4=2-x-5/x-7
(x-2)(x+1)(x+4)(x+7)=19
0.75x-1/2x=-5;3x+5=4x+1;3X+5=4X+18;1-7x=x-7;9x+8-7x=3x;-(x-2)=3(1-x);3x-7(x-1)=3-2(x+3)解方程详...0.75x-1/2x=-5;3x+5=4x+1;3X+5=4X+18;1-7x=x-7;9x+8-7x=3x;-(x-2)=3(1-x);3x-7(x-1)=3-2(x+3)解方程详细一点
解方程】(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程】(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
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