Question

If , a = x + 2y and b = x - 2y , find ( 2a + b ) - ( a - 2b ) , in terms of x and y .

don't give unwanted ans to get the points ~
stay away if u don't know the ans ( no spams and plagiarism )
well explained ans needed ~

Thanks !! ~ ​

Answer 1

question ;

if , a = x + 2y and b = x - 2y , find ( 2a + b ) - ( a - 2b ) , in terms of x and y .

answer with explanation ;

• by substituting the value of a and b

• 2a + b

• = 2 ( x + 2y ) + ( x - 2y )
• = 2x + 4y + 1x - 2y
• = 2x + 1x + 4y - 2y
• = 3x + 2y

• a - 2b

• = ( x + 2y ) - 2 ( x - 2y )
• = x + 2y - 2x + 4y
• = -1 + 6y

i hope my answer helps !!

Answer 2

• 4x - 4y

Explanation:

Simplify the expression:

• ( 2a + b ) - ( a - 2b ) =
• 2a + b - a + 2b =
• a + 3b

Substitute values:

• a + 3b =
• x + 2y + 3(x - 2y) =
• x + 2y + 3x - 6y =
• 4x - 4y