Solve for a.

1/4(20−4a)=6−a14(20−4a)=6−a

−1

0

no solution

all real numbers

 3.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  a  as the denominator :

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

 3.2       Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

 4.1   Adding a fraction to a whole

Rewrite the whole as a fraction using  a  as the denominator :

 5.1     Pull out like factors :

   20 - 4a  =   -4 • (a - 5) 

 5.2       Adding up the two equivalent fractions

 6.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  a  as the denominator :

the answer is ! ?

2/3

step-by-step explanation: