Solving Equations

2x = x + 3

• 6
• 3
• 2
• x

Tags

CCSS.8.EE.C.7B

Solve:
2(4x-3) - 8 = 4 + 2x

• x = 5/3
• x = 3
• x = 1
• x = 2

Solve:
5y+34 = -2(-7y+1)

• y = -4
• y = 9
• y = 4
• y = 36/19

Solve for f:
f - 4 = 6f + 26

• f = -5
• f = 5
• f = 6
• f = -6

Simplify each equation. Tell whether the equation has one, no, or infinite solutions.
5x + 6 = 2 + 3x

• one solution 
• no solutions
• infinite solutions

Tags

CCSS.8.EE.C.7A

|v + 8| − 5 = 2 

• {-1,-15}
• {-1,-5}
• {-15,15}
• No Solution

|−4 + 5x| = 16

• {16/5,12/5}
• {4,-5}
• {-12/5, 4}
• 4

−2|−2r − 4| = -12

• {-5,1}

• {5,-1}

• {-5}

• No Solution

∣ 2x + 9 ∣ = 15

• x = 3 
• x = 3
  x = -6
• x = 3
  x = -12
• x = 6
  x = -12

 |−2n| + 10 = −50

• {30, -30}
• {20,-20}
• {-5,5}
• No Solution