(2) bracket removal: first remove the bracket, then remove the bracket, and finally remove the braces;
(3) Move the term: move all terms containing unknowns to one side of the equation and all other terms to the other side of the equation;
(4) merging similar terms: transforming the equation into the form of ax=b(a≠0);
(5) The coefficient becomes 1.
Extended data
1, the method of solving the equation:
(1) estimation method: an introductory method when you are just learning to solve equations. Estimate the solution of the equation directly, and then substitute it into the original equation for verification.
(2) Apply the properties of the equation to solve the equation.
(3) Merging similar terms: transforming the equation into a monomial.
(4) Move the term: move the term containing the unknown to the left and the constant term to the right.
2. Scope of application of the equation:
(1) Change the unknown according to the problem.
(2) Around the unknown, find the equivalence relation in the problem.
(3) Using equivalence relation equation.
(4) Solve the equation and answer.