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5.4=8.9-0.5x
We move all terms to the left:
5.4-(8.9-0.5x)=0
We add all the numbers together, and all the variables
-(-0.5x+8.9)+5.4=0
We get rid of parentheses
0.5x-8.9+5.4=0
We add all the numbers together, and all the variables
0.5x-3.5=0
We move all terms containing x to the left, all other terms to the right
0.5x=3.5
x=3.5/0.5
x=7
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