Question

Solve:

1/4 (20- 4a) = 6 - a

A. -1
B. 0
C. All real numbers
D. No solution

Answer 1

$\dfrac{1}{4}(20-4a)=6-a\ \ \ \ \ |use\ distributive\ property:a(b-c)=ab-ac\\\\5-a=6-a\ \ \ \ \ |add\ "a"\ to\ both\ sides\\\\5=6\ \ \ FALSE\\\\Answer:\boxed{D.\ No\ solution.}$