The process of solving the equation is written and checked: the unknown value is substituted into the original equation, and whether the number on the left is equal to the right determines whether the unknown value is the solution of the equation.

For example: 4.6x=23 Solution: x=23÷4.6 x=5 Test: Substitute x=5 into the equation: left = 4.6x5 = 23 = right. So x=5 is the solution of the original equation.

Step of solving equation

(1) If there is a denominator, go to the denominator first.

(2) If there are brackets, remove them.

(3) If it is necessary to move the project, please move it.

(4) Merge similar items.

5] coefficient to 1 to get an unknown value.

[6] Write "Xie" at the beginning.

Factorization method:

One side of the equation is transformed to zero, and the other side is decomposed into the product of two linear factors, so that the two linear factors are equal to zero respectively, and two linear equations are obtained. The roots obtained by solving these two linear equations are the two roots of the original equation. This method of solving a quadratic equation with one variable is called factorization.