Substitution

Front

What is substitution in mathematics?

Back

Substitution is the process of replacing a variable with a number or another expression to evaluate an equation or expression.

Front

If a = 4, what is the value of 3a?

Back

12

Front

If b = 6, what is the value of 5b?

Back

30

Front

What is the formula for finding the value of an expression with substitution?

Back

To find the value of an expression, substitute the given values of the variables into the expression and simplify.

Front

If c = 5, what is the value of 2c?

Back

10

Front

If x = 5, what is the value of 7x - 1?

Back

34

Front

If y = 4, what is the value of 3y + 5?

Back

17

Front

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

Back

22

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with their respective values.

Front

If a = 2 and b = 3, what is the value of 4a + 2b?

Back

14