Diketahui: x = 5a – 13b dan y = 14a + 9b, Berapa Hasil x – y ....
A. 9a + 21b
B. -9a – 21b
C. 19a + 4b
D. -19a – 4b
x – y
= (5a – 13b) – (14a + 9b)
= 5a – 13b - 14a – 9b
= 5a – 14a – 13b – 9b
= -9a – 21b
[tex]\sf \bf \sf x = 5a – 13b[/tex]
[tex]\sf \bf \sf y = 14a + 9b[/tex]
Hasil dari x - y?
[tex]\sf \bf \sf x - y[/tex]
[tex]\sf \bf \sf (5a - 13b) - (14a + 9b)[/tex]
[tex]\sf \bf \sf 5a - 14a - 13b - 9b[/tex]
[tex]\bold{\underline{\boxed{\pink{\sf \bf \tt -9a - 21b}}}}[/tex]
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Soal :
Diketahui: x = 5a – 13b dan y = 14a + 9b, Berapa Hasil x – y ....
A. 9a + 21b
B. -9a – 21b
C. 19a + 4b
D. -19a – 4b
Pembahasan :
x – y
= (5a – 13b) – (14a + 9b)
= 5a – 13b - 14a – 9b
= 5a – 14a – 13b – 9b
= -9a – 21b
Jawaban : C
Diketahui :
[tex]\sf \bf \sf x = 5a – 13b[/tex]
[tex]\sf \bf \sf y = 14a + 9b[/tex]
Ditanya :
Hasil dari x - y?
Jawab :
[tex]\sf \bf \sf x - y[/tex]
[tex]\sf \bf \sf (5a - 13b) - (14a + 9b)[/tex]
[tex]\sf \bf \sf 5a - 14a - 13b - 9b[/tex]
[tex]\bold{\underline{\boxed{\pink{\sf \bf \tt -9a - 21b}}}}[/tex]
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