Question

-5(a+b)+2(2a-b)+4a-7​

Answer 1

Answer:

3a - 7b - 7

Step-by-step explanation:

Given Equation:  -5( a + b )+2( 2a - b )+4a - 7​

$=-5( a + b )+2( 2a - b )+4a -7 \\=-5a -5b + 4a -2b + 4a -7\\=-5a+4a+4a-5b-2b-7\\\\=3a-7b-7\\Ans.$

Answer 2

Answer:

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

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

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

-5(a+b)+2(2a-b)+4a-7-5a-5b+4a-2b+4a-7-5a+4a+4a-5b-2b-7-5a+8a-7b-7

-5(a+b)+2(2a-b)+4a-7-5a-5b+4a-2b+4a-7-5a+4a+4a-5b-2b-7-5a+8a-7b-73a-7b-7

-5(a+b)+2(2a-b)+4a-7-5a-5b+4a-2b+4a-7-5a+4a+4a-5b-2b-7-5a+8a-7b-73a-7b-73a-7(b+1)

NOTE:

opposite sign = subtraction

opposite sign = subtractionsame sign = addition