x-y= - 4, x-3y= - 16
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y = 6
x= 2
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ANSWER :
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GIVEN :
x - y = -4 ____(1)
x - 3y = -16____(2)
TO FIND :
x and y
SOLUTION :
Subtract equations (1) and (2),,
(1) => x - y = -4
(2) => x - 3y = -16
(-) (+) (+)
__________________
2y = 12
y = 12 /2
y = 6
Substitute the value of y = 6 in equation (1),,,
(1) => x - 6 = -4
x = 6 - 4
x = 2
The value of x and y are 2 and 6
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