Focus Study 4/15

8v - 4(v + 8) = 8

• 2
• 10
• 4
• -4 

-(n - 8) = -2

• 6
• 10
• -10
• -6

Solve.
(2x - 3) / 4  = 9

• x = 24
• x = 12
• x = 17.5
• x = 19.5

Tags

CCSS.7.EE.B.4A

What is the first step in solving the equation 2a - 4(a - 5) = 10

• Add 4 to both sides
• Add the 2a and a 
• Distribute 4 to a and -5
• Distribute -4 to a and -5

-a = 9(a - 10)

• 9
• 1
• 90
• 10

Identify if this equation has one solution, infinitely many solutions or no solution.
-3x+1=x+9-4x

• one solution
• infinitely many
• no solution

Solve.
3 - 5x = -9 + x

• 4
• 3
• 2
• 1

Solve for x:
5x - 14 = 8x + 4

• x = 6
• x = -6
• x = -18/13
• x = 10/3

x + 2 = x + 4

• all real numbers
• no solution
• x = 0

x - 2x + 3 = 3 - x

• all real numbers
• no solution
• x = 0
• x = 3