Mathematics - ( Algebra )

Question (1)
Simplify the following:

(a) 4x + 2y + 5x + 3y
(b) 2x + 6y + 3x + 5y
(c) 11x + 3y + 6x + 25y

Question (2)
Simplify the following:

(a) 5x ( 3x + 6 )
(b) 3x ( 7x + 5y )
(c) 16x ( 5x + 2y + 8 )
(d) 5y ( 3x + 2y )
(e) 3y ( 8y + 9x + 4 )

Question (3)
Simplify the following:

(a) 4 ( x + 8 ) - 6 ( 2x + 3 )
(b) 4x ( 3y + 2 ) + 6y ( 3x - 5 )
(c) 6 ( 2x + 3y ) + 5 ( 4x + 9y )
Answer (1)
(a) 9x + 5y
(b) 5x + 11y
(c) 17x + 28y
Answer (2)
(a) 15x + 6
(b) 21x + 5y
(c) 80x + 2y + 8
(d) 3x + 10y
(e) 9x + 24y + 4
Answer (3)
(a) - 8x + 14
(b) 30xy + 8x - 30y
(c) 32x + 63y