The equation is .
Case 1: If a = b,Then
\Case 2: If a = b, Then
(Product of two same signs is positive)
Solve equation for case 1.
\Apply addition property of equality: Add 2 to each side.
\ (Apply additive inverse property:
)
(Add:
)
Solve equation for case 2.
\Apply addition property of equality: Add 2 to each side.
\ (Apply additive inverse property:
)
(Add:
)
Graph the solution on a number line.
The equality solution set is {3 or 7}.