Find the sum of : 7x – 5y -7z; 4x + y; 5z; 5x – 3y x2z
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Answer:
(7x - 5y - 7z) + ( 4x + y) + (5x - 3yx²z)
7x - 5y - 7z + 4x + y + 5x - 3yx²z
7x + 4x + 5x - 5y + y - 7z - 3yx²z
16x + y - 7z - 3yx²z
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Answer:
The values of x and y that simultaneously satisfy the equations 2x + 3y = 5 and 7x - 4y = 3 are
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