方程题3x+18=5x

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方程题3x+18=5x
方程题3x+18=5x

方程题3x+18=5x
3x+18=5x
18=5x-3x
18=2x
x=9

3x-3x+18=5X-3X
18 = 2X
X= 9

3X+18=5X
18=2X
9=X

18=2x
x=9

x=9

3x+18=5x
3x+18=5x
18=5x-3x
18=2x
x=18/2
x=9