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726=x+x*0.21-x*0.15
We move all terms to the left:
726-(x+x*0.21-x*0.15)=0
We add all the numbers together, and all the variables
-(+x+x*0.21-x*0.15)+726=0
We get rid of parentheses
-x-x*0.21+x*0.15+726=0
We add all the numbers together, and all the variables
-1x-x*0.21+x*0.15+726=0
Wy multiply elements
-1x-0.21x+0.15x+726=0
We add all the numbers together, and all the variables
-1.06x+726=0
We move all terms containing x to the left, all other terms to the right
-1.06x=-726
x=-726/-1.06
x=684+0.95999999999992/1.06
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