Expressions, Substitution, Equations

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operations (like addition and multiplication) without an equal sign.

Front

What does substitution mean in mathematics?

Back

Substitution is the process of replacing a variable in an expression or equation with a specific value.

Front

What is an equation?

Back

An equation is a mathematical sentence that shows that two expressions are equal, typically using an equal sign.

Front

What is a variable?

Back

A variable is a symbol (often a letter) that represents an unknown value in mathematics.

Front

What is the solution of an equation?

Back

The solution of an equation is the value of the variable that makes the equation true.

Front

What are inverse operations?

Back

Inverse operations are pairs of operations that undo each other, such as addition and subtraction or multiplication and division.

Front

Solve for g: 5 + g = 6

Back

g = 1

Front

Solve for g: 4g = 24

Back

g = 6

Front

What is the purpose of solving an equation?

Back

The purpose of solving an equation is to find the value of the variable that satisfies the equation.

Front

What does it mean for an equation to be balanced?

Back

An equation is balanced when both sides of the equal sign represent the same value.