Рабочий лист «Решение уравнений» Вариант - 2 №1 8(6-3x) = 4(2+8x) №2 31x – 5 = 6x – 11 №3 4 – 9(11 – 2x) + 3x = –7 + 10x №4 (14 + 2x)(–7) – 8(10x – 11) = 4

№1

8(6 - 3x) = 4(2 + 8x)

48 - 24x = 8 + 32x

-24x - 32x = 8 - 48

-56x = -40

x = -40 / -56

x = 5/7

x ≈ 0.714

№2

31x - 5 = 6x - 11

31x - 6x = -11 + 5

25x = -6

x = -6 / 25

x = -0.24

№3

4 - 9(11 - 2x) + 3x = -7 + 10x

4 - 99 + 18x + 3x = -7 + 10x

-95 + 21x = -7 + 10x

21x - 10x = -7 + 95

11x = 88

x = 88 / 11

x = 8

№4

(14 + 2x)(-7) - 8(10x - 11) = 4

-98 - 14x - 80x + 88 = 4

-10 - 94x = 4

-94x = 4 + 10

-94x = 14

x = 14 / -94

x = -7/47

x ≈ -0.149