Fortune Telling Collection - Zodiac Analysis - Aunt Wang spent 136 yuan on water bottles and tea cups, 14 yuan on water bottles, 2 yuan on tea cups, and 36 yuan on tea cups. How many cups and water bottles are there?
Aunt Wang spent 136 yuan on water bottles and tea cups, 14 yuan on water bottles, 2 yuan on tea cups, and 36 yuan on tea cups. How many cups and water bottles are there?
Then 14x+2y= 136.
2y- 14x=36
The solution is y = 43 and x = 25/7.
2*36=72 yuan 136-72=64 yuan 64/( 14+2)=4 4+36=40.
A: There are 40 water cups and 4 water bottles.
Extended data:
Steps to 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.
7, the equation depends on the relationship between the parts of the equation, and the relationship between addition, subtraction, multiplication and division (complement+complement = sum, and- one of the addends = another addend, difference+subtraction = minuend, minuend-difference = subtraction, factor × factor = product, product ÷ one factor = another.
Baidu encyclopedia-solving equations
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