Simplify: x + (y + 1) + (x + 2) + (y + 3) + (x + 4) + (y + 5)

1.	Simplify: x + (y + 1) + (x + 2) + (y + 3) + (x + 4) + (y + 5)
Answer» Given x + (y + 1) + (x + 2) + (y + 3) + (x + 4) + (y + 5) = x + y + 1 + x + 2 + y + 3 + x + 4 + y + 5 = (x + x + x) + (y + y + y) + (1 + 2 + 3 + 4 + 5) = 3x + 3y + 15

Answer»

Given x + (y + 1) + (x + 2) + (y + 3) + (x + 4) + (y + 5)

= x + y + 1 + x + 2 + y + 3 + x + 4 + y + 5

= (x + x + x) + (y + y + y) + (1 + 2 + 3 + 4 + 5)

= 3x + 3y + 15

Discussion