3.
Add using horizontal method.
(a) 7x + 3y and
4x - 2y
(b) 3a - 2b + C + 3 and a + 3b - 20 - 4
(c) a + 2ab + b2 and a
2ab + b
(d) xy - yz + 2; 2yz + xy - 7 and 3x + 3yz + 3
303
(e) - 2x2 + 3y2; 3y2 + 3 - x and x2 + y2 + 5 - 3xy
(0)
3pq + 2pr - 4ar: - pq + 2qr + pr and 4pq - 3pr + 2ar
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Step-by-step explanation:
sorry but I don't know
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