Lesson 12 Practice

What is an equation?

• A number sentence

• One or more terms put together with + or - signs

• Two equal expressions

Select all the EQUATIONS below:

• 2+3 = 5

• 2x = 8

• 2x + 3 - 4x + 1

• x+ 8 = 15

• 2+ 3 + 2 + 3

A solution to an equation is ...

• the answer

• the value for the variable that makes both sides equal

• the variable

• the vale for the variable that makes one side equal

How can we check to see if a value is the solution to an equation?

• Simplify it

• Guess and Check

• Evaluate the equation and see if both sides are equal

Tell whether the value of the variable is a solution to the equation:

3x=12; x=4

• yes

• no

Tags

CCSS.6.EE.B.5

Tell whether the value of the variable is a solution to the equation:

7 = 13 - n; n=5

• no

• yes

Tags

CCSS.6.EE.B.5

Tell whether the value of the variable is a solution to the equation.
 $\frac{6}{y}=3$  ;  y=2

• yes

• no

Tags

CCSS.6.EE.B.5

Which of these is an equation?

• 5x + 3

• m - 8 = 12

• x + 7 > 13

• πr² + πrh

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

• solution

• coefficient

• constant

• unknown

Tags

CCSS.6.EE.B.5

To "satisfy" an equation means to

• make it true

• simplify it

• repair it

• make it smile

Tags

CCSS.6.EE.B.5