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300=700-0.08x
We move all terms to the left:
300-(700-0.08x)=0
We add all the numbers together, and all the variables
-(-0.08x+700)+300=0
We get rid of parentheses
0.08x-700+300=0
We add all the numbers together, and all the variables
0.08x-400=0
We move all terms containing x to the left, all other terms to the right
0.08x=400
x=400/0.08
x=5000
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