Question

Найдите решение двойного неравенства -7<4х+1<7

Answer 1

Ответ:

-7<4х+1<7

4x + 1 > -7

4x +1 < 7

x > -2

x < 3/2

x ∈ (-2, 3/2)

Answer 2

Пошаговое объяснение:

-7<4х+1<7

4х+1> - 7

4х+1<7

4х> - 7-1

4х<7-1

4х> - 8

4х<6

Х> - 2

Х<6/4

Х> - 2

Х<1,5

Х€(-2;1,5)

Answer 3

[B]: Election or referendum related forecasting.