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1600=45x+405
We move all terms to the left:
1600-(45x+405)=0
We get rid of parentheses
-45x-405+1600=0
We add all the numbers together, and all the variables
-45x+1195=0
We move all terms containing x to the left, all other terms to the right
-45x=-1195
x=-1195/-45
x=26+5/9
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