Question

Add 6a + b – 9c – 4 and 2a – 4b + 5c – 9​

Answer 1

Answer:

8a - 5b - 4c- 13

Step-by-step explanation:

$( 2a - 4b + 5c - 9) + ( 6a + b - 9c - 4)$

$(2a + 6a) - (4b + b) + (5c - 9c) - (9 - 4)$

$8a - 5b - 4c- 13$

Hope It Helps You

Answer 2

Answer:

8a - 3b - 4c - 13

Step-by-step explanation:

6a+1b-9c-4 + 2a - 4b + 5c -9

Now collect like terms

6a+ 2a + 1b+ 4b - 9c + 5c - 4 - 9

Ans= 8a - 3b - 4c - 13