-53+n = -28 n = -28+53 n = 25
n = 7. 3(7) + 7 = 28. 21+7=28
90
23+n+5+n=23+5+n+n=28+2nIt depends what n is, once, you find out what n is equal to, plug it in to the equation above in bold.
N=0
-53+n = -28 n = -28+53 n = 25
n = 28
n = 7. 3(7) + 7 = 28. 21+7=28
40-n equals 28 = 12
90
23+n+5+n=23+5+n+n=28+2nIt depends what n is, once, you find out what n is equal to, plug it in to the equation above in bold.
Oh, dude, let me break it down for you. So, you plug in n as 6 and m as 4, and you get 12 over 6 plus 7 times 4. That simplifies to 2 plus 28, which equals 30. So, the answer is 30. Easy peasy, lemon squeezy!
n = 8
2 plus n is the true one, but 1 plus n is not?
N=0
2n plus 7 equals 19 2n equals 12 n equals 6
m = n/(n-1)