Question

1)3х+6=5х+9 2)-3+6х=5х-9 3)7х-7=-3х-8 4)6+х=5х-1

Answer 1

Объяснение:

Как раз и объяснение и решение

Answer 2

Объяснение:

1) -2х=3

х=-1.5

2)х=-6

Answer 3

Let's solve each of the equations one by one:

1. 3x + 6 = 5x + 9

To solve this equation, we want to isolate the variable x on one side of the equation. We can do this by performing algebraic operations to both sides of the equation to simplify it. Let's start by simplifying both sides:

3x + 6 = 5x + 9 Subtract 3x from both sides: 6 = 2x + 9 Subtract 9 from both sides: -3 = 2x

Now, we have -3 = 2x. To isolate x, divide both sides by 2: -3/2 = x x = -3/2 or x = -1.5

Therefore, the solution to the equation is x = -3/2 or x = -1.5.

2. -3 + 6x = 5x - 9

To solve this equation, we want to isolate the variable x on one side of the equation. Let's simplify the equation step by step:

-3 + 6x = 5x - 9 Subtract 5x from both sides: -3 + 6x - 5x = -9 Combine like terms: -3 + x = -9 Add 3 to both sides: x = -6

The solution to the equation is x = -6.

3. 7x - 7 = -3x - 8

To solve this equation, we'll follow the same steps:

7x - 7 = -3x - 8 Add 3x to both sides: 7x + 3x - 7 = -8 Combine like terms: 10x - 7 = -8 Add 7 to both sides: 10x = -8 + 7 10x = -1 Divide both sides by 10: x = -1/10

The solution to the equation is x = -1/10.

4. 6 + x = 5x - 1

Let's solve this equation step by step:

6 + x = 5x - 1 Subtract x from both sides: 6 = 4x - 1 Add 1 to both sides: 7 = 4x Divide both sides by 4: 7/4 = x

The solution to the equation is x = 7/4 or x = 1.75.

Summary:

1. x = -3/2 or x = -1.5
2. x = -6
3. x = -1/10
4. x = 7/4 or x = 1.75