Question

resolva
x - y = 52 e
10x - y = 2​

Answer 1

Resposta:

x= -50/9 e y= -518/9

Explicação passo-a-passo:

x - y = 52 (I)

10x - y = 2​ (II)

Faça (I)-(II):

x-10x-y-(-y)=52-2

-9x-y+y=50

x= -50/9

Substituindo x= -50/9 em (I)

-50/9-y=52

y=-52-50/9

y=-(468+50)/9

y= -518/9

Answer 2

$\left \{ {{x - y = 52 \atop {10x - y =2}} \right.$    

-y= 52-x (-1)

y= -52+x

10x-(-52+x)

10x+52-x=2

9x= 2-52

9x=5O

x= $\frac{50}{9}$RESPOSTA

y= -52+x

y=-52+ $\frac{50}{9}$

$\frac{-468+50}{9}$

$y=-\frac{518}{\\9}$ RESPOSTA