Solve -3x-5y = 16, X-3y=8
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Answer:
x = -13.3(recurring decimal)
y = -4.4(decimal recurring)
Step-by-step explanation:
-(3x+5y) = 16 _ _ _ I
x - 3y = 8 _ _ _ II
Solving II
x = 8 + 3y
Solving I
3x + 5y = -16
3(8 + 3y) = -16
24 + 9y = -16
9y = -40
y = -(4+4/9)
y = -4.4(decimal recurring)
x = 8 + 3y
x = 8 + 3(-(4(4/9)))
x = 8 + -4(4/3)
x = -(24 + 16)/3
x = -40/3
x = -13.3(recurring decimal)
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