2 answers:
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Below is the solution:
p = 3h + 3u
<span>p = 3(h + u) </span>
<span>p/3 = h + u</span>
<span>(p/3) - u = h </span>
<span>h = (p/3) - u</span>
p=3h + 3u subtract 3u from both sides
p-3u=3h now divide both sides by 3
h = p/3 - u
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x/20 = 65%/100
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Take away 5 on both sides
So 0.75x +5-5=14-5
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How is it possible to know how much he started with? Or is it not asking for an exact amount?