200×5+200×2÷5×(x+15-5)=200x

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200×5+200×2÷5×(x+15-5)=200x
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200×5+200×2÷5×(x+15-5)=200x
200×5+200×2÷5×(x+15-5)=200x

200×5+200×2÷5×(x+15-5)=200x
1000+80*(X+10)=200X1000+80X+800=200X200X-80X=1800120X=1800X=15