7b + 5 – 2a × 4 – 6b = ?​

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7b + 5 – 2a × 4 – 6b

= 7b – 6b + 5 – ( 2a × 4 )

= ( 7 – 6 )b + 5 – 8a

= 1b + 5 – 8a

= b + 5 – 8a

Penjelasan dengan langkah-langkah:

7b + 5 – 2a × 4 – 6b = ?

7b + 5 – 8a – 6b =

(7 – 6)b + 5 – 8a =

b + 5 – 8a