Question

Решите уравнения: 0,7x=14; 2,5x=10; Найдите корень уравнения: 17-3x=2-7x; 17-3x=2+7x; Помогите решить пожалуйста!Заранее очень большое спасибо!!!

Answer 1

Решение смотри на фотографии

Answer 2

1)
 х=14:0,7
х=20
2) 
х=10:2,5
х=4
3)
-3х+7х=2-17
4х=-15
х=-15/4
4)
-3х-7х=2-17
-10х=-15
10х=15
х=15/10
х=1,5

Answer 3

Solving Equations

Let's solve the given equations step by step:

1. 0.7x = 14 - To solve for x, we can divide both sides by 0.7: - x = 14 / 0.7 - x = 20 2. 2.5x = 10 - Similar to the previous equation, we can solve for x by dividing both sides by 2.5: - x = 10 / 2.5 - x = 4 3. Finding the Root of the Equation 17-3x = 2-7x - To find the root of the equation, we need to isolate x on one side of the equation: - 17 - 3x = 2 - 7x - 17 - 2 = 3x - 7x - 15 = -4x - x = 15 / -4 - x = -3.75 4. Finding the Root of the Equation 17-3x = 2+7x - Similarly, isolating x on one side of the equation gives: - 17 - 3x = 2 + 7x - 17 - 2 = 3x + 7x - 15 = 10x - x = 15 / 10 - x = 1.5 I hope this helps! If you have any more questions or need further assistance, feel free to ask.