Question

Решите пожалуйста! 1)x + 1 - 2 (3 - x) - x - 4 2)x + 2 - 4 (1 - x) - (4 + 1) x - 1 3)4 (x + 2) - 5 (1 - x) - x - 2 4)5 (x + 4) - 3 (2 - x) - (3 + 5) x - 3 5)5 (x + 1) - 4 (1 - x) - x - 4 6)4 (x + 2) - (2 - x) - x - 4 7)4 (x + 3) - (2 - x) - (1 + 4) x - 5 8)3 (x + 3) - (4 - x) - x - 4 9)2 (x + 2) - 5 (3 - x) - (5 + 2) x - 3 10)4 (x + 5) - 3 (5 - x) - (3 + 4) x - 3​

Answer 1

1)х+1-6+2х-х-4=-9+2х

2)х+2-4+4х-4х-х-1=х-3

3)4х+8-5+5х-х-2=9х+1

4)5х+20-6+3х-3х-5х-3=11

5)5х+5-4+4х-х-4=8х-3

Answer 2

Для каждого из уравнений решим выражение, приведя подобные слагаемые:

1. x + 1 - 2(3 - x) - x - 4 = x + 1 - 2 * 3 + 2 * x - x - 4 = x + 1 - 6 + 2x - x - 4 = 2x - 9

2. x + 2 - 4(1 - x) - (4 + 1)x - 1 = x + 2 - 4 + 4x - (5)x - 1 = x + 2 - 4 + 4x - 5x - 1 = -x - 3

3. 4(x + 2) - 5(1 - x) - x - 2 = 4x + 8 - 5 + 5x - x - 2 = 4x + 5x - x + 8 - 5 - 2 = 8x + 1

4. 5(x + 4) - 3(2 - x) - (3 + 5)x - 3 = 5x + 20 - 6 + 3x - 8x - 3 = 5x + 3x - 8x + 20 - 6 - 3 = 0x + 11 = 11

5. 5(x + 1) - 4(1 - x) - x - 4 = 5x + 5 - 4 + 4x - x - 4 = 5x + 4x - x + 5 - 4 - 4 = 8x - 3

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

7. 4(x + 3) - (2 - x) - (1 + 4)x - 5 = 4x + 12 - 2 + x - 5x - 5 = 4x + x - 5x + 12 - 2 - 5 = 0x + 5 = 5

8. 3(x + 3) - (4 - x) - x - 4 = 3x + 9 - 4 + x - x - 4 = 3x + x - x + 9 - 4 - 4 = 3x + 1

9. 2(x + 2) - 5(3 - x) - (5 + 2)x - 3 = 2x + 4 - 15 + 5x - 7x - 3 = 2x + 5x - 7x + 4 - 15 - 3 = 0x - 14 = -14

10. 4(x + 5) - 3(5 - x) - (3 + 4)x - 3 = 4x + 20 - 15 + 3x - 7x - 3 = 4x + 3x - 7x + 20 - 15 - 3 = 0x - 2 = -2

Таким образом, решения уравнений равны:

1. 2x - 9
2. -x - 3
3. 8x + 1
4. 11
5. 8x - 3
6. 4x + 2
7. 5
8. 3x + 1
9. -14
10. -2