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Starting from the 3rd step
|0.5x + 1.5| = 0.5
-(0.5x + 1.5) = 0.5
-0.5x - 1.5 = 0.5
-0.5x = 0.5 + 1.5
-0.5x = 2
Multiply both sides by -1
0.5x = -2
Divide both sides by 0.5
0.5x/0.5 = -2/0.5
x = -4
is the other solution.
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