Question

Y=2x-9 найдите значение x если y=5

Answer 1

Подставляем:
$5=2x-9 \\ -2x=-9-5 \\ -2x=-14 \\ x=-14:(-2) \\ x=7$
ОТВЕТ: х = 7; у = 5.

Answer 2

To find the value of x when y is equal to 5 in the equation Y = 2x - 9, we can substitute y with 5 and solve for x. Here's the equation with the given value of y:

5 = 2x - 9

Now, let's solve for x:

Add 9 to both sides of the equation to isolate the term with x:

5 + 9 = 2x - 9 + 9 14 = 2x

Now, divide both sides by 2 to solve for x:

x = 14 / 2 x = 7

So, when y is equal to 5, the value of x is 7.