Question

Which of the following is the solution set of the given equation?
(x - 3) - 2(x + 6) = -5
{-10}
{-4}
{8}

Answer 1

x - 3 - 2x - 12 = -5
x - 2x = 10
-x = 10
x = -10
1st is correct

Answer 2

Expansion:

\[x - 3 - 2x -12 = -5\]
\[-x - 15 = -5\]
\[-x = 10\]
\[\therefore x = -10\]