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Xiao Ming mistakenly wrote minus two X as plus 2x when solving the equation three a minus two x equals five (x is an unknown number). The solution of the equation is x equals negative five, and the solution of the original equation is X
If the solution of 3A + 2x = 5 is - 5, then a = 5; so the original equation is: 15-2x = 5, the solution of the original equation is x = 5
An equation is a ()
A. Equation B. equation C. formula
An equation with unknowns is called an equation
RELATED INFORMATIONS
- 1. Is an equation with unknowns and no solution an equation (such as x = x) It's better to write in detail so that I can understand
- 2. Now, a new operation is defined, for numbers a and B, a} B = a + B / 1-ab. try to calculate (1 / 2} 1 / 5)} 1 / 8
- 3. If AB = a (a) is defined
- 4. If a new operation is defined as a * b = AB / 1-ab, what is the value of [(3 * 2)] * 1 / 6?
- 5. Define an operation "*" in the range of rational number, the rule is a * b = a + B / 2, try to find the solution of equation 3 * (2 * x) = 1
- 6. English translation I'm here to interview for the purchasing position. I have rich purchasing experience and I believe I can be competent for this job
- 7. English translation These are the English standard thank you which are connected by the upper and lower △ symbols a and E. they will be handed in tomorrow
- 8. Behavior translated into English
- 9. Maybe the environment there is better and the life is comfortable
- 10. English translation Where do you put it _______ ___ our life ________ _______ in the future
- 11. How to solve two equations and three unknowns
- 12. An oil painting is twice as long as it is wide. I used a 1.8m wooden frame. What is the length, width and area of this painting?
- 13. A number is 60% more than half of 80. To find this number (using the solution of the equation) is very difficult
- 14. Three fifths of a number is more than two fifths of it. 2. Find this number. (equation) there are 1180 people in the machinery factory. If you transfer one eighth of the male students, you will be recruited again There are 20 female workers. At this time, the number of men and women is equal. How many male workers were there in this factory? The first problem uses equation, the second problem does not use equation
- 15. One third of a number is 0.5 less than 4. Find the number
- 16. It is not allowed to list equations 1. A rectangular playground, 450 meters long and 231 meters wide, with trees planted at the four corners and all around. The distance between two neighboring trees is equal. How many trees should be planted at least? If you buy a sapling for 8 yuan, how much will it cost to buy these trees? 2. Uncle Wang has three children. The eldest goes home once every three days, the second goes home once every four days, and the third goes home once every six days?
- 17. For the rational number A.B, define and calculate a & B = 3A + B / a-3b, calculate: (- 2) & (7 & (- 6)) & = a sign (plus sign, minus sign, multiplication sign, division sign)
- 18. A new operation is defined as X & y = (x + 1) (Y-2) (1) calculation: - 2 & 2 (2) if X & 5 = 12, find the value of X & the sign is a multiplication sign A new operation is defined as X & y = (x + 1) (Y-2) (1) Calculation: - 2 & 2 (2) if X & 5 = 12, find the value of X &This symbol is a multiply sign with a circle outside
- 19. There are twelve numbers 1,2,3, ····················································································· At least four
- 20. 2.4 * (10 + x) = 48