2.2x-1.4x=5.6
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2.2x-1.4x=5.62.2x-1.4x=5.62.2x-1.4x=5.60.6x=5.6解得x=70.8x=5.6x=70.8x=5.6x=77
2.2x-1.4x=5.6
2.2x-1.4x=5.6
2.2x-1.4x=5.6
0.6x=5.6解得x=7
0.8x=5.6
x=7
0.8x=5.6
x=7
7
2.2x-1.4x=5.6
解方程2.2x-1.4x=5.6
5.6x+1.4x=15.4求x
（X+X)+(X-X)+(X*X)+(X/X)=100
1.4x-x=9.8求x
x+(x-1.4)+1.5x=33.
2.2x-x=0.
2.2X=75+X,
x-0.6x=5.6
x+5.6=3x
2+X=1.4X
x+18=1.4x
x-0.3x=1.4
x*x*x*x*x=80000?
x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)2.2/3+x/(3x-1)=1/9x-3
9-1.4x=9.8x-2.2 怎么解
1.4X+2.2(6-X)=10 怎么解
x*x*x=504 x*x*x=504