Question

Resuelve: 3x + 7y = 37
X-y = -1​

Answer 1

Explicación paso a paso:

3x + 7y = 37

X-y = -1

-y = - 1 - x / - 1

y = 1 + x

3x + 7 ( 1 + x) = 37

3x + 7 + 7x = 37

3x + 7x = 37 - 7

10 x = 30

x = 30 / 10

x = 3

y = 1 + x

y = 1 + 3

y = 4

Comprobación

3x + 7y = 37

3*3 + 7*4 = 37

9 + 28 = 37

37 = 37 //✔️✔️

X-y = -1

3 - 4 = - 1

-1 = - 1 //✔️✔️

Ojalá te sirva <3

Answer 2

Respuesta:

{(3;4)}

Explicación paso a paso:

ahi ta