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3000=x*2.7-9000-x*1.8
We move all terms to the left:
3000-(x*2.7-9000-x*1.8)=0
We add all the numbers together, and all the variables
-(x*2.7-x*1.8-9000)+3000=0
We get rid of parentheses
-x*2.7+x*1.8+9000+3000=0
We add all the numbers together, and all the variables
-x*2.7+x*1.8+12000=0
Wy multiply elements
-2.7x+1.8x+12000=0
We add all the numbers together, and all the variables
-0.9x+12000=0
We move all terms containing x to the left, all other terms to the right
-0.9x=-12000
x=-12000/-0.9
x=13333+0.29999999999927/0.9
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