Question

1) -6х – 4 = -9х + 11 2) 6 – 5х = 2х +5 3) 5(2х + 4) = 6х – 10 4) 7(-3 + х) – 2х = -6 5) 2(х - 3) - 5 = 4х 6) -5 (7 – х) + 2х = -7 7) 9 + 3(1 – 2х) = 2(3х – 2) 8) 3 – 3(х + 2) = 5(1-х)

Answer 1

Ответ:

Привет! вот продолжение 6,7,8

Answer 2

Let's solve each of these equations step by step:

1. -6x - 4 = -9x + 11

First, let's get all the x terms on one side and constants on the other:

-6x + 9x = 11 + 4

3x = 15

Now, isolate x by dividing both sides by 3:

x = 15 / 3 x = 5

2. 6 - 5x = 2x + 5

Let's get the x terms on one side and constants on the other:

6 - 5x - 2x = 5

Combine like terms:

6 - 7x = 5

Subtract 6 from both sides:

-7x = 5 - 6 -7x = -1

Now, isolate x by dividing both sides by -7:

x = -1 / -7 x = 1/7

3. 5(2x + 4) = 6x - 10

First, distribute the 5 on the left side:

10x + 20 = 6x - 10

Now, let's get all the x terms on one side and constants on the other:

10x - 6x = -10 - 20

4x = -30

Now, isolate x by dividing both sides by 4:

x = -30 / 4 x = -15/2 or -7.5

4. 7(-3 + x) - 2x = -6

Distribute the 7 on the left side:

-21 + 7x - 2x = -6

Combine like terms:

5x - 21 = -6

Add 21 to both sides:

5x = -6 + 21 5x = 15

Now, isolate x by dividing both sides by 5:

x = 15 / 5 x = 3

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

Distribute the 2 on the left side:

2x - 6 - 5 = 4x

Combine like terms:

2x - 11 = 4x

Subtract 2x from both sides:

-11 = 2x

Now, isolate x by dividing both sides by 2:

x = -11 / 2 x = -5.5

6. -5(7 - x) + 2x = -7

Distribute the -5 on the left side:

-35 + 5x + 2x = -7

Combine like terms:

7x - 35 = -7

Add 35 to both sides:

7x = -7 + 35 7x = 28

Now, isolate x by dividing both sides by 7:

x = 28 / 7 x = 4

7. 9 + 3(1 - 2x) = 2(3x - 2)

Distribute the 3 on the left side and the 2 on the right side:

9 + 3 - 6x = 6x - 4

Combine like terms:

12 - 6x = 6x - 4

Add 6x to both sides:

12 = 12x - 4

Add 4 to both sides:

16 = 12x

Now, isolate x by dividing both sides by 12:

x = 16 / 12 x = 4 / 3 or 1.33

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

Distribute the -3 on the left side and the 5 on the right side:

3 - 3x - 6 = 5 - 5x

Combine like terms:

-3x - 3 - 6 = 5 - 5x

-3x - 9 = 5 - 5x

Add 5x to both sides:

-3x + 5x - 9 = 5

Combine like terms:

2x - 9 = 5

Add 9 to both sides:

2x = 5 + 9 2x = 14

Now, isolate x by dividing both sides by 2:

x = 14 / 2 x = 7

So, the solutions to the equations are:

1. x = 5
2. x = 1/7
3. x = -15/2 or -7.5
4. x = 3
5. x = -5.5
6. x = 4
7. x = 4/3 or 1.33
8. x = 7