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.2+.05x=42
We move all terms to the left:
.2+.05x-(42)=0
We add all the numbers together, and all the variables
.05x-41.8=0
We move all terms containing x to the left, all other terms to the right
.05x=41.8
x=41.8/.05
x=835+0.049999999999997/.05
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