Question

Soluções
4x+5y=26
Y=x-3

Answer 1

Resposta:

4x + 5y = 26

4x = 26 - 5y

4x = 21y

x= 21y/4

x= 5,25y

4.5,25y+5y=26

21y+5y=26

26y=26

y=26/26

y=1

y = x - 3

y = -3x

-3x = x - 3

-3x - x = - 3

-4x = - 3

x = -3/-4