If five times a number is added to three times the number, the result is the sum of seven times the number and $9$. Find the number.
I am pretty sure it is $5x+3x=7x+9$ although I am not positive.
Help?
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You're correct. Solve for $x$ and get $8x-7x=x=9$.
Hope that helps!
answered Jan 18 '12 at 4:45
