Answered

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Solve the following system using the substitution method.
9x + 8y = 15
-5x + 12y = -107

(x, y) = ( , )

Sagot :

sbcardinals
x = (15 - 8y)/9

-5[(15 - 8y)/9] + 12y = -107

(-75/9) + (40/9) + 12y = -107

y = -8.59

x = [15 - 8(-8.59)]/9

x = 9.3
(x,y) = (9.3, -8.59)

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