5x-6y+8z+(7x-9z) -(2y+9z-10)
Matematika
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Pertanyaan
5x-6y+8z+(7x-9z) -(2y+9z-10)
1 Jawaban
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1. Jawaban Angelwienlk
5x-6y+8z+(7x-9z) -(2y+9z-10)
=5x-6y+8z+7x-9z-2y-9z+10
=5x+7x-6y-2y+8z-9z-9z+10
=12x-8y-10z+10