jika a+b = 7 a+3b = 12 tentukan a+2b???
Matematika
Gezi
Pertanyaan
jika a+b = 7 a+3b = 12 tentukan a+2b???
2 Jawaban
-
1. Jawaban subebe
a+b = 7
a+3b=12
eliminasikan
-2b = -5
b=5/2
a= 7 - 5/2 = 9/2
a+2b = 9/2 + 5 = 19/2 = 9,5 -
2. Jawaban fitrinurmalasa
a= 5 b=2 a+2b=9 semoga paham