x+18=1.4x

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x+18=1.4x
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x+18=1.4x
x+18=1.4x

x+18=1.4x
0.4x=18
x=45

x+18=1.4x
18=1.4x-x
0.4x=18
x=18÷0.4
x=45
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x+18=1.4x (x+30)*(x-18)=x*x （X+X)+(X-X)+(X*X)+(X/X)=100 1.4x-x=9.8求x x+(x-1.4)+1.5x=33. 90-x=2x(18+x) x/(x^2+6x+18)=? x平方+x=18,求x 2+X=1.4X x-0.3x=1.4 x^2=(x+30)X(x-18)怎么解 10x+(6-x)+18=10(6-x)+x (30-x):(18+x)=(20+x):(32-x) x+(x+3)+2x+(2x-18)=255 x*x*x*x*x=80000? x-0.7x=18 x-60%x=18 180-x/x=18%