(x-9)(X+8)
9n+9=81 9n=72 n=8
6 + 4 + 12 + 18 + 72 + 1 + 2 + 3 + 8 + 9 + 24 + 47 = 206
X = 72 72 divided by 9 equals 8
subtract 19 from 91. this will give you 8X equals 72. then you divide 72 by 8, and therefore X will equal to 9
7z+9 = 72 7z = 72-9 7z = 63 z = 9
(x-9)(X+8)
x8+9=81 -9 -9 x8 =72 /8 /8 x= 9
that equals 72
9n+9=81 9n=72 n=8
6 + 4 + 12 + 18 + 72 + 1 + 2 + 3 + 8 + 9 + 24 + 47 = 206
X = 72 72 divided by 9 equals 8
subtract 19 from 91. this will give you 8X equals 72. then you divide 72 by 8, and therefore X will equal to 9
It is: 72/9 = 8
10
72
-72/9 = -8