Question

Subract: Sa-7 ab- 4b from 7a+2ab-3b.​

Answer 1

Given:

First expression: 5a - 7ab - 4b

Second expression: 7a + 2ab - 3b

What to do?​

Subtract: (7a + 2ab - 3b) - (5a - 7ab - 4b)

Solution:

(7a + 2ab - 3b) - (5a - 7ab - 4b)

Remove the brackets,

⇒ 7a + 2ab - 3b - 5a + 7ab + 4b

Rearrange the like terms,

⇒ 7a - 5a + 2ab + 7ab - 3b + 4b

Solve the like terms,

⇒ 2a + 9ab + b

∴ Therefore, the answer is 2a + 9ab + b.

Answer 2

Answer:

The answer is 2a + 9ab + b.

Step-by-step explanation: