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504.85=160+1.21x
We move all terms to the left:
504.85-(160+1.21x)=0
We add all the numbers together, and all the variables
-(1.21x+160)+504.85=0
We get rid of parentheses
-1.21x-160+504.85=0
We add all the numbers together, and all the variables
-1.21x+344.85=0
We move all terms containing x to the left, all other terms to the right
-1.21x=-344.85
x=-344.85/-1.21
x=285+5.68434188608E-14/1.21
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