Jawaban:
5 (x+ 7 y)+(4x-3y)
= 5(-2+21)+(4(-2)-3(3))
= 105-20-9
= 86
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Jawaban:
5 (x+ 7 y)+(4x-3y)
= 5(-2+21)+(4(-2)-3(3))
= 105-20-9
= 86