Question

4+x=2y
2x+y=1

suma y resta​

Answer 1

Explicación paso a paso:

(-2)X-2Y= -4 (-2)= -2X+4Y= 8

2X+Y= 1

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5Y= 9

Y= 9/5

2X+9/5= 1

2X= 1-9/5

X= -0.8/2= -0.4

2(-0.4)+9/5=1

-0.8+1.8= 1

1= 1