Solving equations with variables on both sides

Solve: 5x + 15 = 10x - 40

• x = 10

• x = -10

• x = 11

• x = -11

4( x + 2) = 16

What is the solution to the equation?

• -2

• 0

• 1

• 2

3x + 2(4x - 4) = 3

What is the solution to the equation?

• 4

• 3

• 2

• 1

What is the first step you should take to solve this problem?

1 + 4n - 6n = 1 - 8n

• subtract 8n to both sides

• multiply 6n to both sides

• combine the like terms 4n + -6n

Solve the equation

4x - 5x + 9 =5x - 9

• x = -3

• x = 9

• x = 3

• x = -9

6r + 7 = 13 + 7r

• r = 6

• r = -6

• r = 1/6

• r = -1/6

-7x - 3x + 2 = -8x - 8

• x = 8

• x= 3

• x = 5

• x = -5

5 + 2x = 2x + 6

• x = 10

• x = 0

• 0 = 1

• no solution

-31 - 4x = -5 -5(1 + 5x)

• x = 1

• no solution

• x = 25

• x = -1

38 + 7k = 8(k + 4)

• no solution

• k = 6

• k = 5

• k = 0