HP Dari |2y+5|=|7-2y|
Matematika
windychya
Pertanyaan
HP Dari |2y+5|=|7-2y|
1 Jawaban
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1. Jawaban DB45
Nilai Mutlak
|a| = | b |
a² - b² = 0
(a + b)(a - b) = 0
|2y +5 | = |7 -2y|
(2y +5 + 7 - 2y) (2y +5 -7 +2y) = 0
(12)(4y-2) =0
4y -2 =0
y = 1/2