Question

14+5х=4х +3х ;3а+5=8а=8а-15 ;3.6+2х=5х+1.2;      0.7х-1.82=0.8x + 3.46

Answer 1

5х-4х-3х=-14
-2х=-14
Х=-14:(-2)
Х=7
3а-8а=-15-5
-5а=-20
А=-20:(-5)
А=4
2х-5х=1,2-3.6
-3х=-2,4
Х=-2,4:(-3)
Х=0,8

Answer 2

14=4х+3х-5х
14=2х
х=14/2=7;

3,6-1,2=5х-2х
2,4=3х
х=0,8;

Answer 3

Let's solve each equation step by step:

1. 14 + 5x = 4x + 3x

Simplifying the right side: 14 + 5x = 7x

Subtracting 4x from both sides: 14 + x = 0

Subtracting 14 from both sides: x = -14

Therefore, the solution to this equation is x = -14.

2. 3a + 5 = 8a = 8a - 15

There seems to be an error in this equation. It appears to have two equals signs, which is not valid in an equation. Without knowing the intended equation, it's impossible to solve.

3. 3.6 + 2x = 5x + 1.2

Subtracting 2x from both sides: 3.6 = 3x + 1.2

Subtracting 1.2 from both sides: 2.4 = 3x

Dividing both sides by 3: x = 0.8

Therefore, the solution to this equation is x = 0.8.

4. 0.7x - 1.82 = 0.8x + 3.46

Subtracting 0.7x from both sides: -1.82 = 0.1x + 3.46

Subtracting 3.46 from both sides: -5.28 = 0.1x

Dividing both sides by 0.1: x = -52.8

Therefore, the solution to this equation is x = -52.8.