Answer :
3x + 5y = 54
y = x - 2
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3x + 5(x - 2) = 54
3x + 5x -10 = 54
8x = 64
x = 8
y = x - 2
y = 8 - 2
y = 6
y = x - 2
________________________________________________________
3x + 5(x - 2) = 54
3x + 5x -10 = 54
8x = 64
x = 8
y = x - 2
y = 8 - 2
y = 6