x+2.5x=0.7怎麼解
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x+2.5x=0.7怎麼解x+2.5x=0.7怎麼解x+2.5x=0.7怎麼解3.5X=0.7X=0.7/3.5X=0.2(1+2.5)x=0.73.5x=0.7x=0.2
x+2.5x=0.7怎麼解
x+2.5x=0.7怎麼解
x+2.5x=0.7怎麼解
3.5X=0.7
X=0.7/3.5
X=0.2
(1+2.5)x=0.7
3.5x=0.7
x=0.2
x+2.5x=0.7怎麼解
x十2.5x=0.7
（X+X)+(X-X)+(X*X)+(X/X)=100
x-0.7x=64.8求x
x+x-2.5+x-4=85
x-0.7x=18
x-0.7x=0.51
x-0.7x=1.02
x-0.7x=1.
x-0.7x=0.24.
x-0.6x=0.7
x-0.7=15x
2*x*x+2.5x=13 x=?
X乘X减2.5X=6, 求X!
２.5x-x=15
x =2.5(x-180)
x*x*x*x*x=80000?
3道简单的分式方程,1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)3.(x+1)/(x+2) + (x+6)/(x+7) = (x+2)/(x+3) + (x+5)/(x+6)