Question

b)x=3y
2x+5y=11

c)x=y+6
x+y=58
​

Answer 1

Resposta:

b)

x = 3

y = 1

c)

x = 32

y = 26

Explicação passo-a-passo:

b)

x = 3y

2x + 5y = 11  

=> 2 * 3y + 5y = 11  

=> 6y + 5y = 11  

=> 11y = 11  

=> y = 11/11  

=> y = 1  

=> x = 3*1  

=> x = 3

c)

x = y + 6

x + y = 58

=> y + 6 + y = 58  

=> 2y = 58 - 6  

=> y = 52/2  

=> y = 26  

=> x = 26 + 6  

=> x = 32