Question

(9a-3b+5c)-(2a-5b+7c)​

Answer 1

Answer: 7a + 2b - 2c

Explanation:

Our task is to simplify the following

`\sf{(9a-3b+5c)-(2-5b+7c)}`

Distribute the minus:

`\sf{9a-3b+5c-2a+5b-7c}`

Combine like terms:

`\sf{9a-2a-3b+5b+5c-7c}`

`\sf{7a+2b-2c}`

Answer 2

Hello!

Answer:

`\Large \boxed{\sf 7a +2b-2c}`

Explanation:

→ We want to simplify this expression:

`\sf (9a-3b+5c)-(2a-5b+7c)`

◼ Remove parentheses:

`\sf 9a-3b+5c-2a+5b-7c`

◼ Order the expression:

`\sf 9a-2a -3b+5b+5c-7c`

◼ Simplify the expression:

`\boxed{\sf 7a +2b-2c}`

Conclusion:

The expression (9a - 3b + 5c)-(2a - 5b + 7c)​ is equal to 7a + 2b - 2c.