Question

14. If 4 x – 4 x-1 = 24, then find the value of x.

Answer 1

Answer:

25

5

4

x

−4

x−1

=24

or 4

x

(1−

4

1

)=24

or 4

x

4

3

=24

or 4

x

=

3

24×4

=32=2

5

or 2

2x

=2

5

or x=

2

5

or 2x=5 or (2x)

x

=(5)

5/2

=5

1

×5

1

×5

1/2

=25

5