(-3a – 5) – (-9a – 7) =​

Jawaban:

6a + 2

Penjelasan dengan langkah-langkah:

(-3a – 5) – (-9a – 7) = …

= (-3a – (-9a)) + (-5 – (-7))

= (-3a + 9a) + (-5 + 7)

= (9a – 3a) + (7 – 5)

= 6a + 2

(-3a-5)–(-9a-7)=>

=>-3a-5+9a+7

=>-3a+9a–5+7

=>6a–5+7

=>6a+2

=>2(3a+1)

========================

SEMOGA BERMANFAAT

#SEMANGATBELAJAR

#NOCOPAS