Alexis bought a bag that contained 8 cups of m&m’s. She used two-thirds cup of m&m’s each time she makes a batch of cookies. If the bag now has 5 cups of m&m’s left, how many batches of cookies has she made

In mathematics, an equation is a formula that expresses the equivalency of two expressions, by connecting them with the equals sign =.
The word equation and its cognates in other languages may have subtly different meanings; for illustration, in French an équation is defined as containing one or further variables, while in English, any well- formed formula conforming of two expressions related with an equals sign is an equation.
Working an equation containing variables consists of determining which values of the variables make the equivalency true.
The variables for which the equation has to be answered are also called unknowns, and the values of the unknowns that satisfy the equivalency are called results of the equation.
There are two kinds of equations: individualities and tentative equations. A tentative equation is only true for particular values of the variables.

Let the no. of batches she cooked be x.

Equation becomes 8 - (2/3) * x = 5

After solving, x = 4.5

Transforming the given problem into mathematical equation and solving we determined that 4.5 batches of cookies has Alexis made.

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