Question

If2x=10then2x–1 plz help plz help

Answer 1

2x=10

×=10÷2

x=5

2x-1=0

2×5-1=0

10-1=0

9=0 so value of x is 5 and it is not the zeroes

Answer 2

2x=10 x=5

2x=1 x=1/2

it's is correct answer.

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