How much is 5x-3 = 7x + 2? Write the formula for each step
5X-7X=2+3
-2X=5
X=-5/2
X=-2.5
Equation: 7x + 72 = 5x * 2
72=10x-7x
72=3x
x=24
Give me some points. I wrote the whole process for you
If 5x-2 = 7x + 8, we get
If the same term is moved to the same side: - 2x = 20
That is, 2x = - 20
The reduction is: x = - 10
RELATED INFORMATIONS
- 1. (7x-1) / 3 - (5x + 1) / 2 = 2 - (3x + 2) / 4 equation
- 2. Note that the sum of the two equations (1) x ^ 2-3x + 2 = 0 is A1 (2) x ^ 2 + 7x + 12 = 0, the sum of the two equations is A2 (3) x ^ 2-11x + 30 = 0, and the sum of the two equations is A3 to find a2006 Note that the sum of the two equations (1) x ^ 2-3x + 2 = 0 is A1 (2) X ^ 2 + 7x + 12 = 0, the sum of the two is A2 (3) The sum of x ^ 2-11x + 30 = 0 is A3 Find the value of a2006 Find a1 + A2 + a3 +a2008
- 3. If 3x + Y / 2 = 7x + 3Y = 1 / 2, then x =? Y =?
- 4. How to solve the equation x-0.7x = 5.1
- 5. To solve the equation. 7x + 0.7 × 8 = 20.6 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X - (521 + 37) = 23
- 6. How to do 17.4x-14.9x = 1.25 × 6 equation?
- 7. It is known that 2-radical 3 is a solution of the equation x squared-4x + a = 0. Find another root of the equation and the value of A
- 8. What is the value of m when the equation x2 + MX-3 = 0 has a common root with the equation x2-4x - (m-1) = 0? And find the common root
- 9. Is the second power of 7Y a monomial or a polynomial
- 10. 7x+6=8-3x+2x
- 11. Given that x = - 1 is a root of the equation 2x ^ 2 + ax-a ^ 2 = 0 about X, then a =? Why can't we use Veda's theorem
- 12. Given that x 1 and x 2 are two positive integer roots of the equation x 2-m x + 5 (m-5) = 0, and x 1 + x 2 = 7, find the value of M
- 13. It is known that the lengths of the two right angles of a right triangle are exactly the two roots of the square of the equation x-3x + 2 = 0. Find: (1) the sum of the lengths of the two right angles of the right triangle; (2) the area of the right triangle
- 14. What is the synthetic method for solving higher order equations of one variable? Such as the title
- 15. If you know one of the solutions of higher order equation of one variable, is there a simple way to find other solutions? For example: X & # 179; + X & # 178; + x-3 = 0, it is obvious that x = 1 is one of the solutions. Is there a simple way to find the other two solutions
- 16. Solution of higher order equation X^4+8X-48=0
- 17. Given a = x & # 179; - 5x & # 178;, B = x & # 178; - 11x + 6, find: 1. A + 2B; 2. When x = - 1, find a + 5B
- 18. Given the equation (5x + 10) / 8 = X-1, what is the solution of this equation?
- 19. Equation 5x-4x = 0 a, has only one solution. B, has countless solutions. C, has no solution
- 20. If the solution of the equation A / 3-2x = 4-A about X is larger than that of the equation a (X-10) = x (A-20), the value range of a is obtained If the solution of the equation A / 3-2x = 4-A about X is larger than that of the equation a (X-10) = x (A-20), the value range of a is obtained Please.