Question

Solve: 1/3a^2 - 1/a= 1/6a^2

Answer 1

If you mean:

1/(3a^2)-1/a=1/(6a^2)  we need a common denominator of 6a^2

2/(6a^2)-6a/(6a^2)=1/(6a^2), multiplying all terms by 6a^2 then:

2-6a=1  subtract 2 from both sides

-6a=-1  divide both sides by -6

a=1/6