Question

4x-20=2^5:2^2

Answer 1

4x - 20 = 2⁵ : 2²

=> 4x - 20 = 2³ = 8

=> 4x = 8 + 20 = 28

=> x = 28 : 4 = 7

Answer 2

4x - 20 = 2^5 : 2^2

4x - 20 = 2^3

4x - 20 = 8

4x         = 20 + 8

4x        = 28

x          = 28 : 4

x          = 7

Answer 3

4x-20=2^3

4x-20=8

4x=8+20

4x=28

x=28:4

x=7