40÷x=5
×=40÷5
×=8
Solve the equation:
1. An equation containing an unknown number is called an equation. It can also be said that an equation containing unknowns is an equation.
2. Holding the value of the unknown quantity of the equation is called the solution of the equation, or the root of the equation.
3. Solving the equation is the process of finding the values of all the unknowns in the equation.
4, the equation must be an equation, and the equation is not necessarily an equation. An equation without unknowns is not an equation.
5. Verification: After solving the equation, verification is needed. Verification is to substitute the unknown value into the original equation to see if both sides of the equation are equal. If they are equal, then the value obtained is the solution of the equation.
6. Note: Write the word "Xie", align the equal sign and check.