Вопрос
6. Penulutis cincremy ypannemiti ) 2x-3y=3 x+5y=7
Решения
4.7
(175 Голоса)
Трифон
Экспертная проверка
элита · Репетитор 8 лет
Ответ
To solve the system of equations:
we can use the substitution or elimination method. Here, we'll use the elimination method.First, let's multiply the second equation by 2 to align the coefficients of
:
Now we have the system:
Next, we subtract the first equation from the second to eliminate
:
Simplify the left side:
Solve for
:
Now, substitute
back into the second original equation
:
Simplify:
Convert 7 to a fraction with a denominator of 13:
Subtract
from both sides:
So, the solution to the system of equations is: