Substitution

Front

What is substitution in mathematics?

Back

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

Tags

CCSS.6.EE.A.2C

Front

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

Back

34

Tags

CCSS.6.EE.A.2C

Front

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

Back

17

Tags

CCSS.6.EE.A.2C

Front

If a = 4 and b = 6, what is the value of 3a + 5b?

Back

42

Tags

CCSS.6.EE.A.2C

Front

What is the first step in solving an equation using substitution?

Back

Identify the value of the variable to be substituted.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

If b=3, what is the value of 11b+7?

Back

40

Tags

CCSS.6.EE.A.2C

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 numbers.

Tags

CCSS.6.EE.A.2C

Front

If x=2, what is the value of 4x+3?

Back

11

Tags

CCSS.6.EE.A.2C

Front

What is the purpose of using substitution in algebra?

Back

The purpose of substitution is to simplify expressions and solve equations by replacing variables with known values.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

If a=1 and b=2, what is the value of 2a + 3b?

Back

8

Tags

CCSS.6.EE.A.2C