Question

21 × 3 = х × 3 + у х 3. ​

Answer 1

Ответ:

x+y=21

Пошаговое объяснение:

21*3=x*3+y*3

Разделяем всё на 3

21=x+y

Answer 2

Відповідь:

x = -y +21

y = -x + 21

Покрокове пояснення:

21 × 3 = х × 3 + у х 3

63 = 3x + 3y

-3x = 3y - 63

x= -y + 21

(якщо потрібно знайти у то в 3 і 4 кроці поміняй місцями x і y)

Answer 3

It looks like you have an equation with variables x and y. Let's solve it step by step:

21 × 3 = x × 3 + y × 3

First, simplify both sides:

63 = 3x + 3y

Now, let's isolate one of the variables. You can start by subtracting 3y from both sides of the equation to isolate 3x:

63 - 3y = 3x

Next, divide both sides by 3 to solve for x:

(63 - 3y) / 3 = x

Now, simplify the right side:

x = (63 - 3y) / 3

You can further simplify the equation if needed. If you have a specific value for y, you can plug it into this equation to find the corresponding value of x.