Question

5x - 6y = 60 (três soluções)

Answer 1

1)  x = y

5x - 5x = 60

-x = 60

x = -60

x = -60  e y = -60

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2) 
y = x + 1

5x - 6.(x+1) = 60

5x - 6x -6 = 60

-x = 60 +6

x = -66


y = -66 +1

y = -65



3)

y =  x + 2


5x - 6.(x+2) = 60

5x - 6x - 12 = 60

-x = 60 + 12

-x = 72

x = -72


y = -72 + 2

y = -70