its 8
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3z-5
z is the number. I think the question might be ".. 7 times the number...? So 63+7z =11z-6 or 4z=57 or z=57/4 . If not, please be more specific.
There are all sorts of relations possible. equality, inequality, less than, greater than, x times (where x is some number), y more (where y is some other number), z to the power (where z is yet another number), and so on.
Twenty three fewer than a variable represented by z.
x = 4z/5 y = .72z 5x/4 = z By subsitution, we have: .9x = y Thus, x is 10% more than y, and Without Loss of Generality, y is 10% less than x.