Question

4. (a) What should be added to r + xy + y to obtain 2r + 3.ry?
(b) What should be subtracted from 2a + 8b + 10 to get - 3a + 7b + 16?
5. What should be taken away from 3x2 - 4y2 + 5xy + 20 to obtain
- r- y2 + 6xy + 20?
6. (a) From the sum of 3.x - y + 11 and -y-11, subtract 3.x -y-11.
(b) From the sum of 4 + 3x and 5 - 4x + 2r", subtract the sum of 3r - 5x and
- + 2r + 5.​

Answer 1

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