How to change the equation: 0.7-x divided by 2 = x-0.25-x divided by 3
0.7-x △ 2 = x-0.25-x △ 3 change the equation: 0.7-x / 2 = x-0.25-x / 3 multiply both sides by 6 to get: 0.7-x / 2 = x-0.25-x / 3
4.2-3X=6X-1.5-2X 6X+3X-2X=4.2+1.5 7X=5.7 X=5.7/7 X=57/70
RELATED INFORMATIONS
- 1. 1.2.5.10. () 26.37
- 2. Given that vector group {A1, A2, A3}, {B1, B2, B3} satisfies B1 = a1 + A2, B2 = a1-2a2, B3 = a1 + a2-7a3, it is proved that vector group A is linearly independent If and only if the vector group B is linearly independent
- 3. If lgx + lgY = 2, find the minimum value of 1 / x + 1 / y (1 / x) is one in X, and (1 / y) is one in y
- 4. Now there is a column of numbers 2, - 4,8, - 16,32, - 64128 What is the nth number?
- 5. In the rectangular coordinate system, if the coordinates of a and B are known as a (0,1) and B (2,3) respectively, M is a point on the x-axis, and Ma + MB is the smallest, then the coordinates of M are______ .
- 6. 2,4,8,16,32,64,128…… How to express the nth number of this group of numbers? Good answer plus points (correct question)
- 7. 2. - 4, 8, - 16, 32, - 64, 128. What is the nth number? Why?
- 8. 1、 - 2, 4, - 8, 16, - 32 2、 - 4, 8, - 16, 32, - 64 Write the nth number of each group and calculate the first eight of each group 1、 - 2, 4, - 8, 16, - 32 2、 - 4, 8, - 16, 32, - 64 Write the nth number of each group and calculate the sum of the first eight in each group
- 9. The first number is 64, the second number is 32, the third number is 16, and the fourth number is 8. What is the number n?
- 10. Observe the numbers 1, - 2, - 3,4, - 5,6 in the following column. According to the form shown in the figure, 2013 is the number () on the left of line ()? -1 2 -3 4 -5 6 -7 8 -9 10 -11 12 -13 14 -15 16
- 11. Simplification ratio: 5 / 24 to 1 / 6, 5.6 to 0.7, 1 / 2 to 2 / 3 to 5 / 6
- 12. (2 / 7 + 13 / 9 + 5 / 7) divided by 26 / 3 How much is it
- 13. How to add 8 numbers to 1000?
- 14. 1).3/1+(—6/5) 2).27-18+(-7)-32 3).0.5+(-4/1)-(-2.75)+2/1 4).33.1-(22..9)+(-10.5) 5).(-8)-(-15)+(-9)-(-120) 6).-3/2+(-6/1)-(-4/1)-2/1 7).5/3-2/3+(—4/11)+4/13
- 15. How to move a match so that 52 minus 9 equals 46 Ask God for help
- 16. The difference between 3 times of a number and 2 is 36 divided by the quotient of 0.9, which is 111. Find the number? List the equation and find the solution of the equation
- 17. What's five out of nine minus five out of nine times three out of five?
- 18. The difference between AB is 737, a divided by B, the quotient is 16, the remainder is 17, a = (), B = ()
- 19. Add and subtract symbols before 2,3,4,5,6,7,8,9 to make the result zero
- 20. An old man said that if you add 17 to my age and multiply it by 1 / 4, then subtract 15 and divide it by 1 / 10, you will be 100 years old