Practice: Understanding Solutions to Equations

Front

In the expression 8r - 3, the VARIABLE is ___

Back

r

Front

In the equation 2y = 30, which value of the variable is a solution? y= 10, 12, 24

Back

No solution is given

Front

In the expression 8r + 3, the CONSTANT is ___

Back

3

Front

A letter or symbol that represents an unknown value is called ______________.

Back

Variable

Front

A mathematical sentence stating that two expressions are EQUAL is called an ______________.

Back

equation

Front

What is the value of the variable in the equation 5x + 10 = 30?

Back

x = 4

Front

In the expression 4x + 7, what is the coefficient of x?

Back

4

Front

What is the solution to the equation x - 5 = 0?

Back

x = 5

Front

In the equation 3a + 6 = 15, what is the value of a?

Back

a = 3

Front

What does it mean for two expressions to be equivalent?

Back

They have the same value for all values of the variable.