Question

1085/Решите уравнения: 1) 34(x +1,2)-1,2 = 60, 2)2951 (x-3) -12,7 -0,3 3)15. (y - 0,2) + 17,8 = 38.8. 4)2,136:(19- y) +1.12 - 8,24​

Answer 1

Ответ:

1) 34(x+1,2)-1,2=60

34x+40,8-1,2=60

34x=60-40,8+1,2

34x=20,4

x=20,4÷34

x=0.6

3) 15(y-0,2)+17,8=38,8

15y-3+17,8=38,8

15y=38,8+3-17,8

15y= 24

y=24÷15

y=1,6

Пошаговое объяснение:

2 и 4 я не поняла. Может неправильно записано

Answer 2

Решение уравнений:

1) Решение уравнения: 34(x + 1.2) - 1.2 = 60

To solve the equation, first we'll distribute the 34 to the terms inside the parentheses:

34x + 34*1.2 - 1.2 = 60 34x + 40.8 - 1.2 = 60 34x + 39.6 = 60

Next, we'll isolate the term with x by subtracting 39.6 from both sides:

34x = 60 - 39.6 34x = 20.4

Finally, we'll solve for x by dividing both sides by 34:

x = 20.4 / 34 x = 0.6

So, the solution to the first equation is: x = 0.6

2) Решение уравнения: 2951 + (x - 3) - 12.7 - 0.3

To solve the equation, first we'll combine the constants:

2951 - 12.7 - 0.3 = 2938

Now, the equation becomes:

2938 + (x - 3) = 2938 + x - 3

We can simplify this to:

x = 2938 + 3 x = 2941

So, the solution to the second equation is: x = 2941

3) Решение уравнения: 15(y - 0.2) + 17.8 = 38.8

To solve the equation, first we'll distribute the 15 to the terms inside the parentheses:

15y - 15*0.2 + 17.8 = 38.8 15y - 3 + 17.8 = 38.8 15y + 14.8 = 38.8

Next, we'll isolate the term with y by subtracting 14.8 from both sides:

15y = 38.8 - 14.8 15y = 24

Finally, we'll solve for y by dividing both sides by 15:

y = 24 / 15 y = 1.6

So, the solution to the third equation is: y = 1.6

4) Решение уравнения: 2.136 / (19 - y) + 1.12 - 8.24

To solve the equation, first we'll perform the division:

2.136 / (19 - y) + 1.12 - 8.24

Now, the equation is in its simplest form:

2.136 / (19 - y) - 7.12

This is the simplified form of the equation.

If you need further assistance, feel free to ask!