1500x=1200(9-x)怎么解,

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1500x=1200(9-x)怎么解,

1500x=1200*9-1200x
1500x+1200x=1200*9
2700x=10800
x=10800/2700
x=4

1500x=10800-1200x
2700x=10800
x=10800/2700=4

1500x=1200(9-x)
1500x=10800-1200x
1500x+1200x=10800
2700x=10800
x=4

1500x=10800-1200x
1500x+1200x=10800
2700x=10800
x=4