Solution equation: 11-2.5 (× - 3) = 10.5 | Math enthusiast | Mathematical art

Solution equation: 11-2.5 (× - 3) = 10.5

11-2.5（×-3）=10.5
2.5（×-3）=11-10.5
2.5（×-3）=0.5
×-3=0.5/2.5
×-3=0.5
×=3+0.5
×=3.5
Do not understand can ask, help please adopt, thank you!

RELATED INFORMATIONS

1. 11-2.5 (x-3) = 10.5
2. Solving equation 3x + 10 = 23,5 checking calculation
3. The solution equations of X + 32 = 76 and x-4 = 12 and x-1.8 = 5 There must be a process to solve the equation
4. 86 + x = 7 (X-12) solve the equation and write the calculation method
5. X minus 6 = 7.6, solve the equation and check
6. 7.86-x equals 0.86 to solve the equation
7. Solve the following equation. X + 37 = 34 & 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-512 = 38 & 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; & nbsp; & nbsp; & nbsp; x-56 = 1
8. X-0.8 = 3.72
9. 1.2: x = 3:4.8 how to solve the equation Finding the unknown x
10. Solving the equation X-6 △ 9 / 2 = 1 / 2 simple calculation 3 / 4 △ 5 / 3 + 3 / 4 × 2 / 5
11. X / 0.6 = 3 / 7
12. 6 (x + 2.8) = 40.8 9x-0.4 * 2.5 = 9.8 (5.6 + x) * 4 = 56
13. How to solve two equations of X, for example: (1 + 20%) x = 2 (X-10) I will only calculate 1.2x = 2x-20
14. It is known that the distance from a straight line L to two parallel lines L1 is 2x + y + 1 = 0, L2 is 2x + y + 3 = 0 is equal, so the equation of the straight line L is solved. I don't know what's going on, but I have calculated it several times, which is different from the answer
15. 805 + 1.2x = 10.3
16. Solve the equation 1 + 2-1-3 = 6-1
17. 1 / 4 + 6 = (x + 12) 1 / 3 solution equation
18. X-6 / 7-x = 3 / x + 1 to solve the equation
19. Solving the equation: 6 / 7-x = 2 / 7-1 / 4
20. Solution equation: x + 1 / 1 + 1 / 2 = 5 / 6