Умоляю помогите
Раскройте скобки и упростите выражение:
№1.
а) 2x – (2x + y) + y =
б) – a + (2a – b) + 2b =
в) 7 – (b + 14) – 2b =
г) 3b – (18 + b) + 8 =
№2.
а) 2(3 – x) – (8 + x) =
б) – 4(y + 5) + (12 – y) =
в) – (7 – x) + 4(x – 5) =
г) – 9(y – 4) – (12 + y) =
№3. Решите уравнение:
а) 3x – 5x = -−13 +3
б) – 5y –17y = -−50 +6
в) a –12a = -−6 − 27
г) –27x –33x = –12 ∙ (−-5)
№4. Раскройте скобки и упростите выражения:
–12(7 −2d) –9(7d –5) –3(15 +8d) =

ответы:

№1

а)

б)

в)

г)

№2

а)

б)

в)

г)

№3

а)

б)

в)

г)

№4

Пошаговое объяснение:

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.