Solve 20x= 10 for x

x= 1/2

x= 1.5

x= 2

x= 10

Start by isolating the x term which is 20x by dividing both sides by 20.

That leaves you with x = 10/20 which can be reduced to x = 1/2.

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents