Question

Помогите пожалуйста Раскройте скобки и приведите подобные слогаемые 4 ( 7-5x ) - ( 12 - 20 x) 2 ( 3x-y ) - ( 5x -2y ) 6 ( x + 2y ) - 3 ( 2x + y ) 5 ( 4x + y ) - 2 ( x-y )

Answer 1

28-20х-12+20х=16
6х-2у-5х+2у=х
6х+12у-6х-3у=9у
20х+5у-2х+2у=18х+7y

Answer 2

4(7-5x) - (12 - 20x) + 2(3x-y) - (5x-2y) + 6(x + 2y) - 3(2x + y) + 5(4x + y) - 2(x-y)

First, distribute the numbers outside the parentheses to the terms inside the parentheses:

28 - 20x - 12 + 20x + 6x - 2y - 15x + 2y + 24x + 12y - 6x - 3y + 20x + 5y - 8x + 2y

Now, combine like terms:

28 - 12 = 16

-20x + 20x - 15x + 24x - 6x - 8x = -25x

-2y + 2y + 12y - 3y + 5y + 2y = 18y

So the final expression is:

16 - 25x + 18y