Expressions & Equations

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value.

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equal sign (=).

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

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 to the equation k + 9 = 17?

Back

The solution is k = 8.

Front

If y = 9, what is y + 2?

Back

y + 2 = 11.

Front

What is the solution to the equation 5 + c = 11?

Back

The solution is c = 6.

Front

If b = 5, what is b + 9?

Back

b + 9 = 14.

Front

How do you write an equation for 'Nine subtracted from a number equals 12'?

Back

The equation is n - 9 = 12.

Front

What is the first step in solving the equation x + 4 = 10?

Back

Subtract 4 from both sides to isolate x.