Question

X + Y= 334x+2y = 120​

Answer 1

Ответ:

Х=28

У = 4

Пошаговое объяснение:

4×28=112

2+4=8

112+8=120

Answer 2

To solve the system of equations $X + Y = 334$ and $334X + 2Y = 120$, we can use either substitution or elimination methods. Here, I'll demonstrate the elimination method.

First, let's multiply the first equation by 2 to prepare for elimination:

1. $2(X + Y) = 2 \times 334$ $2X + 2Y = 668$

Now, let's write down the second equation:

2. $334X + 2Y = 120$

Now, we can subtract equation 2 from equation 1 to eliminate $Y$:

$2X + 2Y - (334X + 2Y) = 668 - 120$ $2X + 2Y - 334X - 2Y = 548$

Now, simplify the left side:

$-332X = 548$

Now, divide both sides by -332 to solve for $X$:

$X = \frac{548}{-332}$

Now, calculate the value of $X$:

$X \approx -1.65$

Now that we have $X$, we can substitute this value into the first equation to solve for $Y$:

$X + Y = 334$

$-1.65 + Y = 334$

Now, solve for $Y$:

$Y \approx 335.65$

So, the approximate solutions for $X$ and $Y$ are:

$X \approx -1.65$

$Y \approx 335.65$