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(7a - 2a + 3a) + (2b - 5b)
(5a + 3a) + (-3b)
8a - 3b
10p - 2(3 - 2p) - 7
10p - 2(3) - 2(2p) - 7
10p - 6 - 4p - 7
(10p - 4p) + (- 6 - 7)
6p + (- 13)
6p - 13
- 8km x 2k x (- 3km)
(- 8km x 2k) x (- 3km)
(-16k²m) x (- 3km)
48k³m²
= 7a - 2a + 3a + 2b - 5b
= 8a - 3b
2) 10p - 6 + 4p - 7
= 10p + 4p - 6 - 7
= 14p - 13
3) -8 km x 2k x (-3km)
= -16k^2m x (-3km)
= 48k^3m^2