152x-378y=-74 ,-378x+152y=-604
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this question is similar to urs as its given above that the coefficients of x and y are similar same is the case with ur question too. so u can solve ur question by this method
hope it helps u
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152x - 378y = -74 ………...….(1)
-378x + 152y = -604 ………..(2)
Now,
Adding (1) and (2),
-226x - 226y = -678
-226(x + y) = -678
x + y = -678/-226
x + y = 3 ………….(3)
Also,
Subtracting (1) and (2) we get,
530x - 530y = 530
530(x - y) = 530
x - y = 530/530
x - y = 1
x - y = 1 ……. (4)
Now,
Adding (3) and (4) we get,
2x = 4
x = 4/2
x = 2
Putting value of x in (3) we get,
x + y = 3
2 + y = 3
y = 3 - 2
y = 1
Therefore,
x = 2 and y = 1
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