Question

A) 2,6 (x-2) = -1, 8(x-4)в)(2х+4)=8с)3х-1 - 2х=5-х 6 3 9​

Answer 1

Ответ:

2.6x-5,2=-1,8x-7,2

2,6x+1,8x=-7,2+5,2

4,4x=2

x=4,4÷2

x=2,2

B)

2x=8-4

2x=4

x=4÷2

x=2

c)3x-2x-1x=5+1

0=6

Answer 2

Let's solve each equation step by step:

A) 2.6(x - 2) = -1

First, distribute 2.6 to the terms inside the parentheses:

2.6 * x - 2.6 * 2 = -1

This simplifies to:

2.6x - 5.2 = -1

Next, let's isolate the variable term by moving the constant term to the other side:

2.6x = -1 + 5.2

2.6x = 4.2

To solve for x, divide both sides by 2.6:

x = 4.2 / 2.6

x ≈ 1.615

So the solution for A) is x ≈ 1.615.

B) 2x + 4 = 8

To solve for x, we can start by subtracting 4 from both sides:

2x = 8 - 4

2x = 4

Next, divide both sides by 2:

x = 4 / 2

x = 2

So the solution for B) is x = 2.

C) 3x - 1 - 2x = 5 - x

Combine like terms on both sides:

x - 1 = 5 - x

Next, let's isolate the variable term by moving the constant term to the other side:

x + x = 5 + 1

2x = 6

To solve for x, divide both sides by 2:

x = 6 / 2

x = 3

So the solution for C) is x = 3.

If you have any further questions, please, let me know.