Question 137403
solve by substitution method. 
x = 1/8y - 1 
y = 1/4x + 39 
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y = (1/4)[(1/8)y - 1] + 39

y = (1/32)y - (1/4) + 39

(31/32)y = (155/4)

(31/8)y = 155
(1/8)y = 31
y = 248
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Substitute into x = (1/8)y -1 to solve for "x"
x = (1/8)248 -1
x = 32
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Final Answer: x = 32, y = 248
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Cheers,
Stan H.