1. 8х + 11 = 6х + 132. 4(5х + 2) = 7х – 53. 7(2х – 1) – 3х = х – 174. 5х – 5(4х + 3) =...

Question

1. 8х + 11 = 6х + 13

2. 4(5х + 2) = 7х – 5

3. 7(2х – 1) – 3х = х – 17

4. 5х – 5(4х + 3) = 6(5х – 1)

5. 4х – 7(3х – 5) = 4 – 3(4х – 7)

6. 2,4(x – 0,1) – 0,26 = 2,4x – 0,4
Прошу решите это Линейные уравнения .(Вариант 10)

Answer 1

Аопвтатшраьдтаи а тарпиптгоап

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Answer 2

1) 8х + 11 = 6х + 13
8х - 6х  =  13 - 11
2x = 2
x = 2

2) 4(5х + 2) = 7х – 5
20x + 8 = 7х – 5
20x - 7x = -5 - 8
13x = -13
x = -1

3)  7(2х – 1) – 3х = х – 17
14x - 7 - 3x = x - 17
14x - 3x -x = 7 - 17
10x= -10
x = -1

4)5х – 5(4х + 3) = 6(5х – 1)
5x - 20x -15 = 30x - 6
5x - 20x -30x = 15 - 6
-45x=9
x = -0.2

5)  4х – 7(3х – 5) = 4 – 3(4х – 7)
4x - 21x + 35 = 4 - 12x + 21
-5x= - 18
x = 3.6

6) 2,4(x – 0,1) – 0,26 = 2,4x – 0,4
2.4x - 0.24 - 0.26 = 2.4x - 0.4
x любое