Equations and Expressions Review

Front

What is an equation?

Back

A math sentence that shows two expressions are equal, using an equal sign.

Front

Solve for a: -19 = -8 (-4+a) - (2a+1)

Back

a = 5

Front

Solve for x: 5x - 14 = 8x + 4

Back

x = -6

Front

What is an expression?

Back

A combination of numbers, variables, and operators without an equal sign.

Front

What is a variable?

Back

A symbol, often a letter, that represents a number in an expression or equation.

Front

What is a coefficient?

Back

A number that multiplies a variable in an expression.

Front

Simplify: 2(4 + 9w)

Back

8 + 18w

Front

Solve for n: -(n - 8) = -2

Back

n = 10

Front

What is the difference between an equation and an expression?

Back

An equation has an equal sign, while an expression does not.

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.