Question

4 17% 8:45
If 2*-1 + 2X+1 = 1280, then the value of x is
a) 6
b) 7
c) 8
d) 9​

Answer 1

(d) 9 Answer

x=9.

Step-by-step explanation:

Solution

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2

x−1

+2

x+1

=1280

2

x

(

2

1

+2)=1280

2

x

(

2

5

)=1280

2

x

=512

2

x

=2

9

x=9.