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3x+28-3x=54-4.5+4x
We move all terms to the left:
3x+28-3x-(54-4.5+4x)=0
We add all the numbers together, and all the variables
3x-3x-(4x+49.5)+28=0
We add all the numbers together, and all the variables
-(4x+49.5)+28=0
We get rid of parentheses
-4x-49.5+28=0
We add all the numbers together, and all the variables
-4x-21.5=0
We move all terms containing x to the left, all other terms to the right
-4x=21.5
x=21.5/-4
x=-5+1/2.6666666666667
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