1/3x+3=4/9(x+3)怎么解?
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1/3x+3=4/9(x+3)怎么解?
1/3x+3=4/9(x+3)怎么解?
1/3x+3=4/9(x+3)怎么解?
1/3x+3=4/9(x+3) 两边乘9
3x+27=4(x+3)
3x+27=4x+12
4x-3x=27-12
x=15
1/3x+3=4/9(x+3)
3x+27=4(x+3) (方程两边同时乘以9)
3x+27=4x+12
4x-3x=27-12
x=15