Question

5x+4y=-4 -3-2y=2 методом подстановки СРОЧНО!!!!

Answer 1

Ответ:

y=-2,5 - це y видповидь

x=1,2

Объяснение:

5x+4y=-4

-3-2y=2

5x+4y=-4

-2y=5

5x+4y=-4

y=-2,5

5x+4y=-4

y=-2,5 - це y видповидь

5x-10=-4

5x=6

x=1,2

Answer 2

Solving the System of Equations using Substitution Method

To solve the system of equations 5x + 4y = -4 and -3 - 2y = 2 using the substitution method, we can solve one equation for one variable and then substitute that expression into the other equation.

1. Solve the second equation for y: - -3 - 2y = 2 - Add 3 to both sides: -2y = 5 - Divide by -2: y = -5/2

2. Substitute the value of y into the first equation: - 5x + 4(-5/2) = -4 - 5x - 10 = -4 - Add 10 to both sides: 5x = 6 - Divide by 5: x = 6/5

So, the solution to the system of equations is: - x = 6/5 - y = -5/2

This is the result obtained by solving the system of equations using the substitution method.