I don't know how to do it, but I always make some mistakes that make me crazy, and I can't check them myself. I always spend a lot of time on checking, and I'm afraid it's the same in the exam. I can do the application questions, which are the solutions to the equations listed separately. For example, the two sides of the equation don't form the same number at the same time, and usually only multiply on the left There are also questions like 1.5 (80-x) = 2 / 3 (90-x) with subtracted numbers, I want the method of solving equations and typical examples, It's a one-dimensional equation! I want to practice! Or give me a website!

I don't know how to do it, but I always make some mistakes that make me crazy, and I can't check them myself. I always spend a lot of time on checking, and I'm afraid it's the same in the exam. I can do the application questions, which are the solutions to the equations listed separately. For example, the two sides of the equation don't form the same number at the same time, and usually only multiply on the left There are also questions like 1.5 (80-x) = 2 / 3 (90-x) with subtracted numbers, I want the method of solving equations and typical examples, It's a one-dimensional equation! I want to practice! Or give me a website!

To solve the equation
Let me tell you, most people learn equations carelessly or not
How to teach you
1: Eg 2x + 3 = 5x + 1, you can subtract 2x on both sides of the equation at the same time, instead of "changing sign" and so on (this is the idea of solving equations in high school, not easy to make mistakes, but those who are not familiar with it will slow down, just practice it, very practical)
2: Don't check the whole equation after it's finished, just check one equation after it's finished, save time
Eg (e.g.) 2 (x-3) = 3 (x + 4)
2x-3=3x+4
At the same time minus 2x - 3 = x + 4
Add three at the same time, minus x 0 = x + 7. - x = 7
Multiply by - 1 x = - 7