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0.45=x/4
We move all terms to the left:
0.45-(x/4)=0
We add all the numbers together, and all the variables
-(+x/4)+0.45=0
We get rid of parentheses
-x/4+0.45=0
We multiply all the terms by the denominator
-x+(0.45)*4=0
We add all the numbers together, and all the variables
-1x+1.8=0
We move all terms containing x to the left, all other terms to the right
-x=-1.8
x=-1.8/-1
x=1+0.8/1
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