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0.05x+3-0.02=42
We move all terms to the left:
0.05x+3-0.02-(42)=0
We add all the numbers together, and all the variables
0.05x-39.02=0
We move all terms containing x to the left, all other terms to the right
0.05x=39.02
x=39.02/0.05
x=780+0.020000000000003/0.05
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