Question

5х-1=3; 0,2х+1,1; 3х-4х+6+0

Answer 1

А) 5х-1=3
5х=4
х=4/5
х=0,8

Б)0,2х+1.1=0
0,2х=-1.1
х=-1.1/0.2
х=-5,5

В)3х-4х+6+0=0
-х=-6
х=6

Answer 2

It seems like you've provided a set of equations, but it's a bit unclear what you're asking. Let me try to interpret what you've written:

1. The first equation is 5x - 1 = 3. To solve for x, add 1 to both sides of the equation:

   5x - 1 + 1 = 3 + 1

   This simplifies to:

   5x = 4

   Now, divide both sides by 5 to isolate x:

   5x / 5 = 4 / 5

   x = 4/5

2. The second equation is 0.2x + 1.1. This is not an equation; it's an expression. If you want to simplify it or evaluate it for a specific value of x, please provide more context or information.

3. The third part, "3x - 4x + 6 + 0," simplifies as follows:

   3x - 4x + 6 + 0 = -x + 6

If you have any specific questions or need further assistance, please clarify, and I'll be happy to help.