Question

5х – 10 = -2; 2) 18 х = 8x – 43; 3) 19 x + 30 = 17x − 6

Answer 1

Ответ:

Пошаговое объяснение:

1) 5x - 10 = - 2

5х = 10 - 2

5х = 8

х = 8 ÷ 5

х = 1,6

2) 18х = 8х - 43

18х - 8х = - 43

10х = - 43

х = - 43 ÷ 10

х = - 4,3

3) 19х + 30 = 17х - 6

19х - 17х = - 30 - 6

2х = - 36

х = - 36 ÷ 2

х = - 18

Надеюсь, помогла. ;)

Answer 2

You've given me a system of three linear equations with one variable (x). Let's solve each of them step by step:

1. 5x - 10 = -2

First, add 10 to both sides to isolate the term with x:

5x - 10 + 10 = -2 + 10

5x = 8

Now, divide both sides by 5 to solve for x:

5x/5 = 8/5

x = 8/5

So, the solution to the first equation is x = 8/5.

2. 18x = 8x - 43

Subtract 8x from both sides to isolate the term with x:

18x - 8x = 8x - 8x - 43

10x = -43

Now, divide both sides by 10 to solve for x:

10x/10 = -43/10

x = -43/10

The solution to the second equation is x = -43/10.

3. 19x + 30 = 17x - 6

Subtract 17x from both sides to isolate the term with x:

19x - 17x = 17x - 17x - 6

2x = -6 - 30

2x = -36

Now, divide both sides by 2 to solve for x:

2x/2 = -36/2

x = -18

The solution to the third equation is x = -18.

So, the solutions to the three equations are:

1. x = 8/5
2. x = -43/10
3. x = -18