simple algebra

Front

What is simple algebra?

Back

Simple algebra is a branch of mathematics that deals with numbers and the rules for manipulating those numbers using symbols (like letters) to represent unknown values.

Front

What does the letter 'a' represent in an equation?

Back

In an equation, 'a' usually represents an unknown value that we need to find.

Front

Solve for a: 9a - 5 = 22

Back

a = 3

Front

What does 4^5 mean?

Back

4^5 means 4 multiplied by itself 5 times: 4 x 4 x 4 x 4 x 4.

Front

If y = 7, what is the value of 2(y + 4)?

Back

22

Front

Solve for e: e - 5 = 7

Back

e = 12

Front

What is the square of a number?

Back

The square of a number is that number multiplied by itself.

Front

Solve for U: U² = 36

Back

U = 6 or U = -6 (but we usually take the positive value in simple algebra).

Front

What is an equation?

Back

An equation is a mathematical statement that shows that two expressions are equal, often containing variables.

Front

What is a variable in algebra?

Back

A variable is a symbol (like x or y) that represents an unknown number in an equation.