Answer:
n = 4/3
Step-by-step explanation:
-7(-9+5n) = 31-9n
63-35n = 31-9n
32-35n = -9n
32 = 24n
32/24 = 24n/24
4/3 = n
3 8/13 = n
-7(-9+5n)=-31-9n
distribute
-7 * -9 - 7*5n = -31 - 9n
63-35n = -31-9n
add 35n to each side
63-35n +35n = -31-9n+35n
63=-31 +26n
add 31 to each side
63+31 = -31+31 + 26n
94 = 26n
divide by 26
94/26 = n
divide top and bottom by 2
47/13 = n
change to a mixed number
