Solving Multi-step Equations

The following equation uses which two mathematical properties      4(3x - 2) = 21

• Addition Property

• Commutative Property

• Zero Product Property

• Distributive Property

Expressions that have the same value are called ___________

• Equivalent

• Inverse operations

• No Solutions

• Inequality

Solve this multi-step equation 3(-7x + 3) = 30

• x = 3

• x = -1

• x = -3

• x = 1

6m + 4 -7m -9 -2m = 20

• m = 8

• m = 3.8

• m = -8.3

• m = -3

An operation that is used to UNDO another operation to solve an equation is called a(n)_______________

• Inverse

• Evaluate

• Addition property

• Inequality

What is the difference between an equation and an expression?

• Expressions are a complete thought. Equations are not resolved.

• Expressions have inequality symbols

• Equations have an equal sign to solve for the variable, expressions can only be simplified and evaluated.

• Equations only have one solution.

What is the most efficient way to solve

 $\frac{3}{5}x\ +\ 4\ =\ 7$  

• Add 4 to both sides, then subtract 7 

• Multiply both sides by 5

• Multiply both sides by 3/5

• Subtract 4 from both sides 

8x - 6 = 2 (4x - 3)

• -3

• 3

• infinite solutions

• no solutions

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

Solve:
32 - 7x = -6(x + 3)

• 50
• 3
• -3
• -50

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

Solve the equation:
3x - x + 2 = 4(2x - 1)

• infinite solutions
• x = 1
• x = -1
• no solution

Tags

CCSS.8.EE.C.7A