200x+100(8-x)=900

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Solution for 200x+100(8-x)=900 equation: 



200x+100(8-x)=900

We move all terms to the left:

200x+100(8-x)-(900)=0

We add all the numbers together, and all the variables

200x+100(-1x+8)-900=0

We multiply parentheses

200x-100x+800-900=0

We add all the numbers together, and all the variables

100x-100=0

We move all terms containing x to the left, all other terms to the right

100x=100

x=100/100

x=1

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