1.

2a + 3b + c + d ----(1) 6b + 3c + 9d + 4a--(2) 5a + 7b - 2c - d-----(3) What is the value of (1) + (2) - (3)?

Answer»

2a + 3b + c + d ----(1)
6b + 3c + 9d + 4a--(2)
5a + 7b - 2c - d-----(3)
What is the value of (1) + (2) - (3)?



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