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x=(105+x)*0.3
We move all terms to the left:
x-((105+x)*0.3)=0
We add all the numbers together, and all the variables
x-((x+105)*0.3)=0
We calculate terms in parentheses: -((x+105)*0.3), so:We get rid of parentheses
(x+105)*0.3
We multiply parentheses
0.3x+31.5
Back to the equation:
-(0.3x+31.5)
x-0.3x-31.5=0
We add all the numbers together, and all the variables
0.7x-31.5=0
We move all terms containing x to the left, all other terms to the right
0.7x=31.5
x=31.5/0.7
x=45+3.5527136788005E-15/0.7
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