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21-08-2019
Mathematics

contestada

Is (5,1) the solution for
2x-y= 9
X+4y=9

Respuesta :

Аноним Аноним

21-08-2019

Use the substitution method

x= 5 , y= 1

2x-y= 9

2(5)-1= 9

Mutiply first then subtract

10-1= 9

9= 9

X+4y=9

5+4(1)= 9

5+4= 9

9= 9

Answer : Yes

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