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11 votes
HELP FAST!!
(m+nx)/(m-n)=(p+qx)/(p-q) if mq=np

User Jason Lewis
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1 Answer

7 votes
7 votes

Basically all you need to show is –(p-q)=(-p)+q. (1)

Since 0 = (p-q) + (-(p-q)) (additive inverse), we get –p = -q +(-(p-q)). Now substitute for (–p) in (1).

Then m+q-n-p=(m+q)-(n+p) follows. (since -n-p+(n+p) = 0 implies -n-p = -(n+p) (additive inverse))

so technically all u need to show is –(p-q)=(-p)+q. Hope this helps!!

User Joseph Adams
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