3 + 0.7x = 10
0.7x=7 x=10
RELATED INFORMATIONS
- 1. Solving equation (12x-10) / (4x-3) + (32x-34) / (8x-9) = (24x-23) / (8x-7) + (16x-19) / (4x-5)
- 2. It is known that the product of the first three terms of the increasing equal ratio sequence {an} is 512, and the three terms are subtracted by 1, 3 and 9 to form the equal difference sequence. The general term formula of the sequence {an} is obtained
- 3. It is known that line AB = 20cm, there is a point C on line AB, and BC = 10cm, M is the key point of line AC, and the length of line am is calculated To write the solution: Because so
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- 6. The 24th power of number 7 can be divided by two integers between 40 and 50 (excluding 50)
- 7. Difference between stainless steel 201 and 202
- 8. 1 / 10 * 11 + 1 / 11 * 12 + 1 / 12 * 13= There's another question that won't be 2 * 3 / 1 + 3 * 4 / 1 + 4 * 5 / 1.99 * 100 / 1
- 9. This year, three times of Xiaogang's age is equal to five times of Xiaofang's age. Ten years later, if four times of Xiaogang's age is equal to five times of Xiaofang's age, Xiaogang's age this year will be five times______ I'm 40 years old
- 10. 6X + 5 = 7x + 6 to solve the equation
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- 12. It is known that 3a-1 and 13-5a are the square roots of X. to find the value of X, whether there should be two solutions (the answer is two solutions), why? There are specific answers To explain why there are two solutions
- 13. It is known that the 24th power - 1 of 2 can be divided by two integers between 0 and 10 sit back and wait
- 14. Power and product 1: (XY ^ 4) m means m of XY4 square 2: - (P ^ 2q) n means the ^ n of: - (sum of squares of P, q) 3: (XY ^ 3n) ^ 2 + (XY ^ 6) ^ n means the square of (XY ^ 3n) + (XY ^ 6) ^ n 4: (- 3x ^ 3) ^ 2 - {(2x) ^ 2} ^ 3 means: (- 3x's Cube) square - {(2x) square} cube
- 15. The result of addition is sum, the result of subtraction is difference, and the result of multiplication is sum___ The result of division is___ The result of the power is___ The power is a special power___
- 16. If a and B are opposite numbers, n is a positive integer. Are the 2n power of a and the 2n power of B opposite numbers
- 17. The 2nth power of (- 20) × (- 2) n is a positive integer
- 18. Simplification [(3n-1) power of (2n-1)] / 2
- 19. If the m power of - 3a, the cubic power of B and the N + 1 power of - A are of the same kind, then 3m-2n = () is the process of solving the problem
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