CCSS.Math.Content.8.EE.C.7

12+5w-4w=15

• w=1
• w=3
• w=5
• w=4

Tags

CCSS.Math.Content.8.EE.C.7

A number less than seventy-five is twenty-seven

• a - 75 = 27
• 75 - a = 27
• a ÷ 75 = 27
• 75 (a) = 27

Tags

CCSS.Math.Content.8.EE.C.7

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (2, 0)

Tags

CCSS.Math.Content.8.EE.C.7

Solve the equation:
2x - 1 = ¾x + 9

• x = -10
• x = 8
• x = -37
• x = 6

Tags

CCSS.Math.Content.8.EE.C.7

In the equation 4y +-9 =-36
y = -4

• True
• False

Tags

CCSS.Math.Content.8.EE.C.7

6x = 30

• x = 5
• x = 24
• x = 6
• x = 36

Tags

CCSS.Math.Content.8.EE.C.7

Find the Error
What error did the student make when solving the equation:
5x + 6 =  66
5x - 6 = 66 -6
5x = 60
5*5x= 60*5
x = 300

• The student subtracted 6 from both sides instead of adding
• Student multiplied by 5 instead of dividing by 5
• Student got the wrong answer when subtracting 66-6
• The student did not correctly eliminate the variable from one side of the equation

Tags

CCSS.Math.Content.8.EE.C.7

 $V=\pi r^2h$  

Solve for h

•  $h=V-\pi r^2$  

•  $h=2V\pi r$  

•  $h=\frac{2V}{\pi}$  

•  $h=\frac{V}{\pi r^2}$  

Tags

CCSS.Math.Content.8.EE.C.7

 $p\ =\ 2l\ +\ 2w$  
solve for w

•  $w=\frac{p}{2l}-2$  

•  $w=\frac{p-2l}{2}$  

•  $w=\frac{p+2l}{2}$  

•  $w=2p-l$  

Tags

CCSS.Math.Content.8.EE.C.7

 $3\left(4-5x\right)=-2-15x$  

• No Solution

• Infinite Solutions

•  $x=14$  

•  $x=10$  

Tags

CCSS.Math.Content.8.EE.C.7