1, denominator: multiply the least common multiple of each denominator on both sides of the equation (items without denominator should also be multiplied).
2. Brackets: generally, remove the brackets first, then the brackets, and finally remove the braces. According to the multiplication and division method (remember that if there is a minus sign or a division sign outside the brackets, the number must be changed).
3. Shift term: put an unknown term on one side of the equation and a constant on the other side of the equation to make it appear in the form of X=a (constant). It should be noted that when shifting the term, the sign transformation should be carried out according to the properties of the equation (in general, the unknown term is moved to the left of the equation and the constant term is moved to the right).
4. Merge similar terms: simplify multiple unknown terms containing X into one term and multiple constants A into one term.
5. coefficient to 1: divide the unknown coefficient a on both sides of the equation to get the solution of equation x = b/a. ..
An equation refers to an equation with unknown numbers, which represents the equal relationship between two mathematical expressions. The value of the unknown quantity that makes the equation hold is called "solution" or "root". The first volume of the fifth grade studies the equation of one yuan and one time. A linear equation of one variable refers to an equation with only one unknown number, the highest number of unknowns is 1, both sides are algebraic expressions, and there is only one root. One-dimensional linear equations can solve most engineering problems, travel problems, distribution problems, profit and loss problem, integral table problems, numerical problems and so on.