Solving with Variables on Both Sides

Solve: 4k + 39 = 7k + 6

• k = 11

• k = 3

• k = -3

• k = -11

Solve: 14y + 5 = 8y - 1

• y = 1

• y = -1

Solve: 46 - 8p = 19 + p

• p = -3

• p = 7

• p = 3

• p = 9

Solve: 8b + 10 = 3b + 25

• b = -3

• b = 5

• b = 7

• b = 3

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Solve for x. 
5x - 10 = x + 6

• No solution

• x = 1

• x = 2

• x = 4

Solve the equation.

7x - 9 - 3x = 4 ( x +3 ) +1 

• -2

• no solution

• 1

• infinite solutions

Describe what was done in each solving step!

• Subtract 4x from both sides

• Step 1

• Distribute

• Step 3

• Combine Like Terms

• Step 2

Mathematical Equivalence

ON

Tags

CCSS.8.EE.C.7B