Example 2: Write each sentence as an algebraic equation. Sentence Algebraic Equation Twice a number, decreased by twenty-nine, is seven. Twelve is sixteen less than four times a number. Sentence Algebraic Equation Eleni is x years old. In thirteen years she will be twenty-four years old.
Exercises Directions: Select the algebraic equation that correctly represents the given sentence. Twice a number is twenty-eight. The quotient of thirty-nine and a number is three. Five less than three times a number is forty-six. Three is twenty-one, divided by the sum of a number and five. If Eric deposits all of his earnings, then, how much money does he earn each week? Each piece of candy costs 25 cents.
Suzanne made a withdrawal of d dollars from her savings account. A large pizza pie with 15 slices is shared among p students so that each student's share is 3 slices. Lessons on Pre-Algebra. Order of Operations. Order of Operations With Exponents. Order of Operations with Integers. Writing Algebraic Expressions. The feature that makes L a T e X the right editing tool for scientific documents is the ability to render complex mathematical expressions.
This article explains the basic commands to display equations. Basic equations in L a T e X can be easily "programmed", for example:. Open an example in Overleaf. L a T e X allows two writing modes for mathematical expressions: the inline mode and the display mode. The first one is used to write formulas that are part of a text.
The second one is used to write expressions that are not part of a text or paragraph, and are therefore put on separate lines.