Question

Question 9.9. Solve the equation.

|x + 7| = 12

{–19, –5}
{–19, 5}
{–5, 19}
{5, 19}

Answer 1

|x+7|=12
can be written as x+7=12 and x=5
and -x-7=12 as -x=19
{-19,5}