Question

Select all the equations that are equivalent.

52 = 8n + 4
4(2n + 1) = 52
4 = 52 – 8n
4n = 48
n = 6

Answer 1

52=8n+4 with n=6 and 4(2n+1) =52. Also, 4=52-8n

Explanation:

52 = 8n + 4

- 4 both side

48 = 8n

÷ both side

n =6

4(2n+1) =52

÷4 both side

2n+1=13

- 1 both sides

2n = 12

÷2

n = 6

4=52-8n

-52

-48 = - 8n

÷ - 8

6 = n

4n =48

÷4

n = 12.

So, 4n =48 is the odd one out