a.a = 2b + 3 dan 5a - 2b + 1 = 0
Matematika
tria193
Pertanyaan
a.a = 2b + 3 dan 5a - 2b + 1 = 0
1 Jawaban
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1. Jawaban alyarauf1053
a = 2b + 3 >> a - 2b = 3
5a - 2b + 1 = 0 >> 5a - 2b = 1
a - 2b = 3 .... (1)
5a - 2b = 1 .....(2)
Eliminasi (-)
-4a = 2
a = -2/4
a = -1/2
>> a = -1/2
a - 2b = 3
(-1/2) -2b = 3
-2b = 3 + (1/2)
-2b = 7/2
b = - 7/4
a = -1/2
b = -7/4