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0.2x+0.45(70)=38.5
We move all terms to the left:
0.2x+0.45(70)-(38.5)=0
We add all the numbers together, and all the variables
0.2x-38.043=0
We move all terms containing x to the left, all other terms to the right
0.2x=38.043
x=38.043/0.2
x=190+0.042999999999999/0.2
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