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i need help solving 6x+5-7x=10-4x+3 and 5-2(x+5)=3(x-2)-1

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In June I purchased 300 shares of Oracle stock at $20 per share. In August I purchased an additional 400 shares at $25 per share. In November bI purchased an additional 400 shares Hi, I'm in physics and am having trouble with some problems...Here's one:

"A science student is riding on a flatcar of a train traveling along a straight horizontal track at a c