2.4x-1.4x=5.2-8
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2.4x-1.4x=5.2-8
2.4x-1.4x=5.2-8
2.4x-1.4x=5.2-8
2.4x-1.4x=5.2-8
x=-2.8
2.4x-1.4x-3x=5.2-8
2.4x-1.4x=5.2-8
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
2.4x-1.4x+3x+2.4=0
2.4x+1.4x+2.4=3x
5x-2.4x=5.2
4x-1.4x-3x+2.4=02.4x-1.4x-3x+2.4=0
9-1.4x=9.8x-2.4
2.4x-9.8=1.4x-9,
8x-1.4x=多少
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
2.6x-8=2.4x
x-x/5=2.4 (求未知数x) 12÷5%x=8 4x+x=12.5
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
(X+X)+(X-X)+(X*X)+(X/X)=100
1.4x-x=9.8求x
x+(x-1.4)+1.5x=33.