Question

a) 4/7.|x|+1/28=12/28

b) (2)^2x-1=8

Answer 1

a) 4/7.|x| + 1/28 = 12/28

4/7.|x| = 11/28

|x| = 11/16

=> x = 11/16

b) (2)^2x-1 = 8 = 2³

=> 2x + 1 = 3

2x = 2

x = 1