Question

4(3,5x-7y)-4(2x-7y)-6x
8,6a-(9,7B-5,6a)-3,7
2,25(4x+8)-3(1,5-4x)-12
5pmk-10skp+25pk
6,4x+3,8y-2,5x-8,6x
3y-(7x+8y)+(5x-6y)
8,3a+(6,2-9,4b)+3,4b
Пж плиииз

Answer 1

Ответ:

$1.)4(3.5x - 7y) - 4(2x - 7y) - 6x = \\ 14x - 28y - 8x + 28y - 6x = 0 \\ 2.)8.6a - (9.7b - 5.6a) - 3.7 = \\ 8.6a - 9.7b + 5.6a - 3.7 = \\ 14.2a - 9.7b - 3.7 \\ 3.)2.25(4x + 8) - 3(1.5 - 4x) - 12 = \\ 9x + 18 - 4.5 + 12x - 12 = \\ 21x + 1.5$

$4.)5pmk - 10skp + 25pk = 5p(mk - 2sk + 5k) \\ 5.)6.4x + 3.8y - 2.5x - 8.6x = \\ - 4.7x + 3.8y \\ 6.)3y - (7x + 8y) + (5x - 6y) = \\ 3y - 7x - 8y + 5x - 6y = \\ - 11y - 2x$

$7.)8.3a + (6.2 - 9.4b) + 3.4b = \\ 8.3a + 6.2 - 9.4b + 3.4b = \\ 8.3a + 6.2 - 6b$

Розв'язано, якщо що звертайся