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Solve the system of equations Enter your answer as an ordered pair 4x plus 7y equals 60 negative 4x plus 7y equals negative 4?
4X + 7Y = 60
-4X + 7Y = - 4
-----------------------+
14Y = 56
Y = 4
---------
insert back into one of these equations to find X
4X + 7(4) = 60
4X + 28 = 60
4X = 32
X = 8
------------check
4(8) + 7(4) = 60
32 + 28 = 60
60 = 60
----------------checks, now second equation
-4(8) + 7(4) = -4
-32 + 28 = -4
-4 = -4
--------------checks
solution set.
X = 8
Y = 4
(8,4)
What else can I help you with?
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