Question

Реши систему уравнений: 12х-7у=-2 4х-5у=-6 (Любым способом) Даю 50 баллов

Answer 1

ответ -8

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Answer 2

I can help you solve the system of equations by using the substitution method. Here are the steps:

1. Solve one of the equations for one of the variables. For example, from the second equation, we can get $$y = \frac{4x + 6}{5}$$ 2. Substitute the expression for the variable in the other equation. For example, we can plug in $$y = \frac{4x + 6}{5}$$ into the first equation and get $$12x - 7\left(\frac{4x + 6}{5}\right) = -2$$ 3. Simplify and solve for the remaining variable. For example, we can multiply both sides by 5 and get $$60x - 28x - 42 = -10$$ which simplifies to $$32x = 32$$ and then $$x = 1$$ 4. Use the value of the variable to find the value of the other variable. For example, we can plug in $$x = 1$$ into $$y = \frac{4x + 6}{5}$$ and get $$y = 2$$ 5. Check the solution by substituting the values of the variables in both equations. For example, we can verify that $$12(1) - 7(2) = -2$$ and $$4(1) - 5(2) = -6$$ are both true.

The solution is $$x = 1$$ and $$y = 2$$.

I hope this helps you understand how to solve a system of equations by using the substitution method. If you have any other questions, feel free to ask me.Ответь+подробно.++Реши+систему+уравнений:+12х-7у=-2+4х-5у=-6+(Любым+способом)++Даю+50+баллов+