Jika a+b =c sedangkan c = b +5 berapa nilai a
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Penjelasan dengan langkah-langkah:
c = b + 5
a + b = c
a = c - b
a = ( b + 5 ) - b
a = b - b + 5
a = 5
a + b = c
c = b + 5
–
a + b = c
b + 5 = c
_________ -
a - 5 = 0
a = 5
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