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Verified answer
Bab Nilai MutlakUntuk x ≥ 0
|x| + |x + 3| = 5
x + x + 3 = 5
2x = 2
x = 1
Untuk x < 0
-x + |x + 3| = 5
|x + 3| = 5 + x
(x + 3)^2 = (5 + x)^2
x^2 + 6x + 9 = 25 + 10x + x^2
9 - 25 = 10x - 6x
4x = -16
x = -4