Answer:
4
+
3
n 5
--------- = --------- solved in n=27
7+n 2
step-by-step explanation:
First, let the number we are looking for be represented by n
.
"three times a number" can then be written as 3
n
.
3
n "added to 4" can this be written as 4
+
3
n
"the number plus 7" can be written as n
+
7
