Question

subtract the sum of 5a-7b+7 and -4a-7+4b from the sum of 9a-7-2b and 14b-2a+4.​

Answer 1

Answer:

6a +15b -3

Step-by-step explanation:

first sum of 5a - 7b + 7 - 4a - 7 + 4b = a - 3b

sum of 9a - 7 - 2b + 14b - 2a + 4 = 7a + 12b - 3

now ,

7a + 12b - 3 -(a - 3b) = 7a + 12b - 3 - a + 3b

= 6a +15b -3