Question

5x + 4y = 2
2x + y = 2​

Answer 1

Respuesta:

y = -2

x = 2

Explicación paso a paso:

5x + 4y = 2

4y = 2 + 5x

y = (2+5x)/4

2x + y = 2​

y = 2 + 2x

2+2x = (2+5)/2

2 (2+2x) = 2+5x

4+4x = 2+5x

4-2 = 5x-4x

2 = x

x = 2

5(2) + 4y = 2

10 + 4y = 2

4y = 2-10

y = -8/4

y= -2