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0.25a+0.5=45
We move all terms to the left:
0.25a+0.5-(45)=0
We add all the numbers together, and all the variables
0.25a-44.5=0
We move all terms containing a to the left, all other terms to the right
0.25a=44.5
a=44.5/0.25
a=178
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