Nilai x dari persamaan I 2x-8 I = I 2x+3I adalah
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Bab NIlai MutlakMatematika SMA Kelas X
|2x - 8| = |2x + 3|
(2x - 8)² = (2x + 3)²
(2x - 8)² - (2x + 3)² = 0
(2x - 8 + 2x + 3) (2x - 8 - 2x - 3) = 0
(4x - 5) (-11) = 0
4x - 5 = 0
4x = 5
x = 5/4