x/50+3(x+300)/100=300.x=?

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x/50+3(x+300)/100=300.x=?

x/50+3(x+300)/100=300.x=?
x/50+3(x+300)/100=300.x=?

x/50+3(x+300)/100=300.x=?
x/50+3(x+300)/100=300.
2x+3(x+300)=30000.
5x+900=30000
5x=29100
x=5820

x=5820

两边同时乘以100得到2x+3x+900=30000所以5X=29100所以X= 5820