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Like ha blue and red ball. Every day he win 2 blue ball and loe 3 red. After 5 day he won the ame amount of blue ball a red. After 9 day he had twice a many blue ball a red. How many red ball he have at the beginning

Answer :

He started out with 47 balls after winning 2 blue balls and losing 3 red balls.

What is equation?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign. Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation. Equal treatment should be given to each party.

Here,

Let the number of blue balls be x and the number of red balls be y,

after 5 days ,

x + 10 = y - 15      

after 9 days ,

x + 18 = 2 * ( y - 27 )  

subtracting both,

8 = y - 39

y = 47

The number of red balls in beginning is 47.

He had 47 balls in the beginning as he win 2 blue ball and lose 3 red balls.

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