Question

a) 2(x+y)+3(x+4y)
b) 5(a-2b)+6(a-4y)
C) 5.(x+3)=3(x-3)​

Answer 1

a)

$2(x + y) + 3(x + 4y) \\ 2x + 2y + 3x + 12y \\ 5x + 14y$

b)

$5(a - 2b) + 6(a - 4y) \\ 5a - 10b + 6a - 24y \\ 11a - 10b - 24y$

c)

$5(x + 3) = 3(x - 3) \\ 5x + 15 = 3x - 9 \\ 5x - 3x = - 9 - 15 \\ 2x = - 24 \\ x = - 12$