Friday 3/19: Solving Linear Equations

8v - 4(v + 8) = 8

• 2
• 10
• 4
• -4 

Tags

CCSS.8.EE.C.7B

2x - 3 + 4x = 27

• 12
• 4
• 5
• 15

Tags

CCSS.8.EE.C.7B

2x + 3(5x - 7) = 47

• x = 1
• x = 2
• x = 3
• x = 4

Tags

CCSS.8.EE.C.7B

38 + 7k = 8(k + 4)

• 6
• 8
• -6
• 1

Solve for the given variable:

7 + 3w = 16

• 7

• 4

• 3

• 5

Tags

CCSS.7.EE.B.4A

What is the next step to solve this equation?
-4x + 6 = 10

• Add 6 to both sides of the equation

• Add 10 to both sides of the equation

• Add 4x to both sides of the equation

• Subtract 6 from both sides of the equation

Tags

CCSS.7.EE.B.4A

-11 + 3(b + 5) = 7

• 1
• -1
• 3
• -3

Tags

CCSS.8.EE.C.7B

 $7x-7-2\left(x+1\right)=-\left(-3x-4\right)$  

Solve the equation

• 13/7

• 5/7

• 13/2

• 5/2

 $4x-5+7\left(x+1\right)=6x+7$  Solve the equation

• -5/4

• -1

• 1

• 5/4

Tags

CCSS.8.EE.C.7B

What is another method to solve linear equations?

• substitute answer choices into the variable to test if both sides are equal.

• set the equation equal to zero

• graph a line

• no other methods exits to solve linear equations.