Question

1/7x-2= 0 и 0,7x -5=0

Answer 1

1/7х=2
х=2:1/7
х=2*7/1
х=14

0,7х=5
х=5:0,7
х=5/1:7/10
х=5/1*10/7
х=50/7
х=7ц1/7

Answer 2

1/7x-2=0
1/7x=2
x=2:1/7
x=2*7=14

0.7x-5=0
0.7x=5
x=5:0.7=5:7/10=(5*10)/7=50/7=7 1/7

Answer 3

To solve the equations:

1. 1/7x - 2 = 0

First, let's isolate the term with x by adding 2 to both sides of the equation:

1/7x = 2

To eliminate the fraction, multiply both sides of the equation by 7:

7 * (1/7x) = 7 * 2

x = 14

So the solution for the first equation is x = 14.

2. 0.7x - 5 = 0

Let's isolate the term with x by adding 5 to both sides of the equation:

0.7x = 5

To eliminate the decimal, divide both sides of the equation by 0.7:

(0.7x) / 0.7 = 5 / 0.7

x = 7.142857142857143

So the solution for the second equation is x = 7.142857142857143 (rounded to 15 decimal places).

Therefore, the solutions to the given equations are x = 14 and x ≈ 7.142857142857143.