Question

Add the following expressions :
(i) 2a + b + 7; 4a + 2b + 3
(ii) 3x + y-8; y + 4 - 7x​

Answer 1

Question : -

Add the following expressions :

(i) 2a + b + 7; 4a + 2b + 3

(ii) 3x + y-8; y + 4 - 7x

Solution : -

(i) 2a + b + 7; 4a + 2b + 3

= (2a+b+7)+(4a+2b+3)

= 2a+b+7+4a+2b+3

= 2a+4a+b+2b+7+3

= 6a + 3b + 10

ii) 3x + y-8; y + 4 - 7x

= (3x+y-8)+(y+4-7x)

= 3x+y-8+y+4-7x

= 3x-7x+y+y-8+4

= -4x+2y-4

Note : -

same sign = addition

opposite sign = subtraction

Answer 2

Answer:

1st questions. answer hai