Question

Л) 4(3x + 5) - 14 = 2(x - 7) e) - 5x + 2 = - 13 3) 5x + 15 = x - 1 и) - 6x + 2 = - x + 22 x+6=11помогите срочно пожалуйста​

Answer 1

Пошаговое объяснение:

л) 4(3х+5)-14=2(х-7)

12х+20-14=2х-14

12х+6=2х-14

6+14=2х-12х

-10х=20

х=-2

е)-5х+2=-13

-5х=-13-2

-5х=-15

х=3

з)5х+15=х-1

5х-х=-1-15

4х=-16

х=-4

и)-6х+2=-х+22

-6х+х=22-2

-5х=20

х=-4

х+6=11

х=11-6

х=5

Answer 2

Solving the Equations

To solve the given system of equations, we'll start by expressing each equation in a more standard form and then proceed with solving for the variables.

1. Given Equations: - \(4(3x + 5) - 14 = 2(x + 7)\) - \(e - 5x + 2 = -13\) - \(5x + 15 = x - 1\) - \(-6x + 2 = -x + 22\) - \(x + 6 = 11\)

2. Solving the Equations: - First, we'll simplify each equation and solve for the variables.

3. Solution: - \(4(3x + 5) - 14 = 2(x + 7)\) \(12x + 20 - 14 = 2x + 14\) \(12x + 6 = 2x + 14\) \(12x - 2x = 14 - 6\) \(10x = 8\) \(x = 0.8\).

- \(e - 5x + 2 = -13\) \(e - 5(0.8) + 2 = -13\) \(e - 4 + 2 = -13\) \(e - 2 = -13\) \(e = -13 + 2\) \(e = -11\).

- \(5x + 15 = x - 1\) \(5x - x = -1 - 15\) \(4x = -16\) \(x = -4\).

- \(-6x + 2 = -x + 22\) \(-6(-4) + 2 = -(-4) + 22\) \(24 + 2 = 4 + 22\) \(26 = 26\) (This equation is an identity, so it's true for all real numbers).

- \(x + 6 = 11\) \(x = 11 - 6\) \(x = 5\).

4. Conclusion: - The solutions to the given system of equations are: - \(x = 0.8\) - \(e = -11\) - \(x = -4\) - \(x = 5\)

These are the solutions to the given system of equations. If you have any further questions or need additional assistance, feel free to ask!