200=(15x-3x)+(20+10.5)

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Solution for 200=(15x-3x)+(20+10.5) equation:



200=(15x-3x)+(20+10.5)
We move all terms to the left:
200-((15x-3x)+(20+10.5))=0
We add all the numbers together, and all the variables
-((+12x)+(30.5))+200=0
We calculate terms in parentheses: -((+12x)+(30.5)), so:
(+12x)+(30.5)
We add all the numbers together, and all the variables
(+12x)+30.5
We get rid of parentheses
12x+30.5
Back to the equation:
-(12x+30.5)
We get rid of parentheses
-12x-30.5+200=0
We add all the numbers together, and all the variables
-12x+169.5=0
We move all terms containing x to the left, all other terms to the right
-12x=-169.5
x=-169.5/-12
x=14+1/8

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