Given a = 3, B = - 5, C = 7, find the following values 2a-c; a-b-c

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• 1. If | a + 5 | + | B-7 | + | a + B + C | = 0, find the value of (A-3) (2-B) (C-9)
• 2. Given that a and B are opposite to each other, and C and D are reciprocal to each other, find the value of 4 / 3 (a + B + 2) - 2CD
• 3. If a and B are opposite to each other, C and D are reciprocal to each other, and the absolute value of M is 3, find the value of a + B / 7-2cd + 3 / m
• 4. If a ≠ 0, find the value of 3A + 3B + B / A + 1 / 2CD
• 5. 1. If a and B are opposite, C and D are reciprocal, and C = - 1, find the value of | C | = 2cd-100 (a + b) 2. If the positions of a, B and C on the number axis are shown in the figure below, the formula is simplified as | a | - | B-C | + | C| ----------------------》 a b 0 c
• 6. If C and B are opposite to each other and C and D are reciprocal to each other, then the value of a + b-2cd is
• 7. Multiply the numerator of a simplest fraction by 3 and divide the denominator by 3 to get 1.2?
• 8. A simplest fraction, if the numerator plus 1, the fraction is 23; if the denominator plus 1, the fraction is 12, the fraction is 23______ ．
• 9. Given that the cube root of a number is 3-2a-4 and 4-3a + 7, find the number
• 10. If the cube root of 2A + 19 is 3, find the square root of 3A + 4
• 11. Let ABCD be all positive numbers, ABCD = 1, then the minimum value of a ^ 4 + B ^ 4 + C ^ 4 + D ^ 4 is? Where a, B, C and D are?
• 12. If a, B, C, D are mutually unequal integers, and ABCD = 49, find the value of (a + B + C + D-1) ^ 2013
• 13. Given that ABCD is four different integers, (A-1) (B-1) (C-1) (D-1) = 4, find the value of a + B + C + D
• 14. In the parallelogram ABCD, the values of angle A: angle B: angle c: angle D can be a1:2:3; 4, b1:2:2:1, c1:1:2:2, d2:1:2:1 In the parallelogram ABCD, the values of angle A: angle B: angle c: angle D can be a1:2:3; 4, b1:2:2:1, c1:1:2:2, d2:1:2:1
• 15. What are the known numbers a + B + C = 9 / 10, B-A = 2 / 1, B-C = 18 / 7, a, B, C? emergency Look for ideas!
• 16. 3 5 7 （） 13 A.8 B.9 C.10 D.11 Which one?
• 17. Given that a + B + C = 10 / 9, B-A = 1 / 2, B-C = 7 / 18, what are the numbers of a, B, C and C Please
• 18. -4/9,10/9,4/3,7/9,1/9 A．7/3 B 10/9 C -5/18 D -2 -4/9,10/9,4/3,7/9,1/9 A．7/3 B 10/9 C -5/18 D -2
• 19. If a, C, D are integers and B is a positive integer, and a + B = C, B + C = D, C + D = a is satisfied, then the maximum value of a + B + C + D is () A. -1B. -5C. 0D. 1
• 20. a. B, C, D are positive integers, B / a = (4d-7) / C, (B + 1) / a = 7 (D-1) / C to find the value of C / A What about D / a