You can put this solution on YOUR website! IF Y is not the same as y then:
Y=100+.8(y-40)+38+75+25-.05(y-40)
Y=100+.8y-32+38+75+25-.05y+2
Y=.75y+208
.75y=Y-208 ans.
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IF Y=y then:
Y-.75Y=208
.25Y=208
Y=208/.25
Y=832 ans.