Question

A)2(n-5)+4(n-1)=0

b)3(2n-1)=-2(n+3)

Answer 1

a) 2n - 10 + 4n - 4 = 0
6n = 10 + 4
6n = 14
n = 14/6
n = 2,3

b) 6n - 3 = - 2n - 6
6n + 2n = -6 + 3
8n = -3
n = -3/8
n = - 0,375

Answer 2

A) 2(n-5) + 4(n-1)= 0
    2n - 10 + 4n -4 = 0
     6n - 14 = 0
     6n = 14 ---> n = 14/6 = 7/3

B) 3(2n-1) = - 2(n+3)
     6n - 3 = - 2n - 6
     6n + 2n = -6 + 3
             8n = - 3----> n = -3/8