50 - 5n = 15
if you need to find the number n then
50 - 5n = 15
-5n = -35
n = 7
I don't understand the way you put the answeres because 58 is the largest number here yet its before .78 on f and g on plus the number occurs 2 times
X
3
+
3
x
2
y
+
2
x
y
2
+
y
3
+
x
2
+
3
x
y
+
y
2