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0.10x+.45(50)=31.5
We move all terms to the left:
0.10x+.45(50)-(31.5)=0
We add all the numbers together, and all the variables
0.10x-31.045=0
We move all terms containing x to the left, all other terms to the right
0.10x=31.045
x=31.045/0.10
x=310+0.045000000000002/0.10
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