Question

8а+3в=12310 2а+3в=5710 а=? в=?

Answer 1

Ответ:

8320+3990=12310 1720+3990=5710

Answer 2

Ответ: лайкайте и отмечайте мои ответы как лучшие.

а=1100

в= 1170

Пошаговое объяснение:

объяснение будет в виде фото

всем рад помочь

всем спасибо

Answer 3

To solve this system of linear equations for the variables $a$ and $b$:

$$\begin{align*} 8a + 3b &= 12310 \\ 2a + 3b &= 5710 \end{align*}$$

We can use the method of substitution or elimination. Let's use the elimination method to solve for $a$ and $b$:

Subtract the second equation from the first equation to eliminate $b$:

$$\begin{align*} (8a + 3b) - (2a + 3b) &= 12310 - 5710 \\ 6a &= 6600 \\ a &= \frac{6600}{6} \\ a &= 1100 \end{align*}$$

Now that we have $a$, we can substitute it back into one of the original equations to solve for $b$. Let's use the second equation:

$$\begin{align*} 2a + 3b &= 5710 \\ 2 \cdot 1100 + 3b &= 5710 \\ 2200 + 3b &= 5710 \\ 3b &= 3510 \\ b &= \frac{3510}{3} \\ b &= 1170 \end{align*}$$

So, the solution to the system of equations is $a = 1100$ and $b = 1170$.