Рабочий лист «Решение уравнений» Вариант - 1 №1 13-5x = 6 – (11 – 6x) + 5x №2 4 – 3x = 10 – (10 – 12x) + 10x №3 13x – 12 = 10 – 4(6 – 8x) №4 2 – 5(12 + 2x) – (6 – 10x) + 7x = 13

№1

13 - 5x = 6 - (11 - 6x) + 5x

13 - 5x = 6 - 11 + 6x + 5x

13 - 5x = -5 + 11x

-5x - 11x = -5 - 13

-16x = -18

x = -18 / -16

x = 9/8

x = 1.125

№2

4 - 3x = 10 - (10 - 12x) + 10x

4 - 3x = 10 - 10 + 12x + 10x

4 - 3x = 22x

-3x - 22x = -4

-25x = -4

x = -4 / -25

x = 4/25

x = 0.16

№3

13x - 12 = 10 - 4(6 - 8x)

13x - 12 = 10 - 24 + 32x

13x - 12 = -14 + 32x

13x - 32x = -14 + 12

-19x = -2

x = -2 / -19

x = 2/19

x ≈ 0.105

№4

2 - 5(12 + 2x) - (6 - 10x) + 7x = 13

2 - 60 - 10x - 6 + 10x + 7x = 13

-64 + 7x = 13

7x = 13 + 64

7x = 77

x = 77 / 7

x = 11