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solve the system of equations using the substitution method. 8x-9=y, y-8x=-4
10 years ago

Answers

Reiny
sub the 1st into the 2nd

(8x-9) - 8x = -4
-9 = -4
well, that is silly!
ahh, we must have 2 parallel lines

no solution!
10 years ago

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