# Equations

Pro Problems > Math > Algebra > Equations# Featured Pro Problems

Find the sum of x and y, if the following quadratic equations in x and y are true.

Two people go to the same store and make the same purchases, but one of them is treated unfairly in the pricing

Rational expressions word problem

The sum of two numbers is six more than twice the smaller number, and if the larger number is multiplied by three, the result is ten less than seven...

A hypothetical problem in which the treasury introduces a new coin into circulation

Determine how many floors a skyscraper has, based on information about someone climbing the stairs

Given three secret numbers, and information about each of them, find the numbers

A messy one-variable word problem about how old James is

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Parenthetical Mess, Solve the Cubic# Understanding Coronavirus Spread

A Question and Answer session with Professor Puzzler about the math behind infection spread.

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