Question

{2x + 5y = 12 {2x + 3y =8 con los metodos
1.sustiticion
2.reduccion
3.igualacion​

Answer 1

Respuesta:

x= 1

y = 2

Explicación paso a paso:

2x + 5y = 12

2x + 3y =8

(2) 2x + 5y = 12

(-2)2x + 3y =8

4x   + 10y =   24

-4x   -6y   =   - 16

______________

0      +4y   =   8

             y  =  8/4

              y = 2

2x + 5y = 12

2x + 5 (2) =12

2x + 10 = 12

2x = 12-10

2x= 2

x= 2/2

x= 1

verificar:

2x + 5y = 12

2(1) + 5(2) = 12

2  +  10   = 2

2x + 3y =8

2(1) + 3(2) = 8

2   +  6   =   8