4.5x+3.5(400-x)=1600

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Solution for 4.5x+3.5(400-x)=1600 equation: 



4.5x+3.5(400-x)=1600

We move all terms to the left:

4.5x+3.5(400-x)-(1600)=0

We add all the numbers together, and all the variables

4.5x+3.5(-1x+400)-1600=0

We multiply parentheses

4.5x-3.5x+1400-1600=0

We add all the numbers together, and all the variables

x-200=0

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

x=200

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