a+2b-c+d;2-d+3c+a;5b-2c+3-d
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Step-by-step explanation:
- =》 a+a = 2a
- b+b = 2b + 2b + 5b = 9b
- c + 3c + 2c = 6c
- d+d+d = 3d
- 2-+2-+3+5-2+3 = 3 ans .
SO, = 3+ 2A + 9B - 6C + 3D
= 3+2+9-6+3 = ABCD
= 5+3+3 = ABCD
= 10 = ABCD
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