Question

(х -5,6) :12=3,7 (х+2,1)• 4 =15,2 (3,9 -х) :4=0,7 6 • (х + 1,5)=25,2 х : 6 +2,8 =3,7

Answer 1

Ответ:

Пошаговое объяснение:

(х -5,6) :12=3,7

х-5.6=3.7*12

х-5.6=44.4

х=44.4+5.6

х=50

(х+2,1)• 4 =15,2

х+2.1=15.2:4

х+2.1=3.8

х=3.8-2.1

х=2.7

(3,9 -х) :4=0,7

3.9-х=0.7*4

3.9-х=2.8

х=3.9-2.8

х=1.1

6 • (х + 1,5)=25,2

х+1.5=25.2:6

х+1.5=4.2

х=4.2-1.5

х=2.7

х : 6 +2,8 =3,7

х:6=3.7-2.8

х:6=0.9

х=0.9*6

х=5.4

Answer 2

To solve the given equations, we will perform the operations step by step. Let's start with each equation one by one:

1. (x - 5.6) / 12 = 3.7

To solve for x, we will first isolate x on one side of the equation: x - 5.6 = 3.7 * 12 x - 5.6 = 44.4 x = 44.4 + 5.6 x = 50

2. (x + 2.1) * 4 = 15.2

Again, isolate x on one side: 4 * x + 4 * 2.1 = 15.2 4x + 8.4 = 15.2 4x = 15.2 - 8.4 4x = 6.8 x = 6.8 / 4 x = 1.7

3. (3.9 - x) / 4 = 0.7

Isolate x: 3.9 - x = 0.7 * 4 3.9 - x = 2.8 x = 3.9 - 2.8 x = 1.1

4. 6 * (x + 1.5) = 25.2

Isolate x: 6x + 6 * 1.5 = 25.2 6x + 9 = 25.2 6x = 25.2 - 9 6x = 16.2 x = 16.2 / 6 x = 2.7

5. x / 6 + 2.8 = 3.7

Isolate x: x / 6 = 3.7 - 2.8 x / 6 = 0.9 x = 0.9 * 6 x = 5.4

So, the solutions to the equations are:

1. x = 50
2. x = 1.7
3. x = 1.1
4. x = 2.7
5. x = 5.4