Question

25•х+49=14913+10•у=1639у-54=162181-8х=45​

Answer 1

Ответ:

25х+49=149

25х=149-49

25х=100

х=100÷25

х=4

13+10у=163

10у=163-13

10у=150

у=150÷10

у=15

9у-54=162

9у=162+54

9у=216

у=216÷9

у=24

181-8х=45

-8х=45-181

-8х=-136

х=-136÷(-8)

х=17

Пошаговое объяснение:

все верно

Answer 2

To solve this system of equations, we will use the methods of substitution and simplification. Let's start with the first equation:

1. 25x + 49 = 149

Now, subtract 49 from both sides of the equation to isolate 25x:

25x = 149 - 49 25x = 100

Next, divide both sides by 25 to solve for x:

x = 100 / 25 x = 4

Now that we have found the value of x, we can use it in the second equation:

2. 10y - 54 = 1639

Add 54 to both sides of the equation:

10y = 1639 + 54 10y = 1693

Now, divide both sides by 10 to solve for y:

y = 1693 / 10 y = 169.3

So, the solution to the system of equations is x = 4 and y = 169.3.