Solving literal Equations

b = 21 + 8a

Step-by-step explanation:

You have to get b on it's own therefore making b the subject.

You would use inverse operation so you would add both sides by 16a.

You would then be left with 2b = 42 + 16a.

You need b on it's own so you would divide each number by 2.

Thus, the answer would be b = 21 + 8a.

Hope this helps :)

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