Question

X+y=17:2x-y=5:2x= ? y=?​

Answer 1

Х+у=8,5
х-у=2,5

(х+у=8,5)-(х-у=2,5)
2у=6
у=3

х+у=8,5
х+3=8,5
х=5,5

ответ:
х=5,5
у=3

Answer 2

Ответ: х=5,5, у=3. См фото.

Пошаговое объяснение:

Answer 3

To solve the system of equations, let's use the method of substitution.

From the first equation, x + y = 17.

Solving for x, we have x = 17 - y.

Now let's substitute this expression for x into the second equation:

2x - y = 5 2(17 - y) - y = 5 34 - 2y - y = 5 34 - 3y = 5 -3y = 5 - 34 -3y = -29

Dividing both sides of the equation by -3, we get:

y = -29 / -3 y = 29 / 3

Now substitute the value of y back into the first equation to find x:

x + (29 / 3) = 17 x = 17 - (29 / 3) x = (51 - 29) / 3 x = 22 / 3

Therefore, the solution to the system of equations is x = 22/3 and y = 29/3.