Equations Write and Solving

Jacob solved the following equation using the steps shown.

Step 1 5x + 9 = 2x - 3

Step 2 3x + 9 = -3

Step 3 3x = -12

Step 4 x = -4

What operation did he perform to get from Step 1 to Step 2?

• Subtracted 2x from both sides of the equation

• Subtracted 9 from both sides of the equation

• Multiplied both sides of the equation by 3

• Added -3 to both sides of the equation

Tags

CCSS.HSA.REI.A.1

Solve the equation

7x=8x+12

• x= 12

• x= -12

• No Solution

• Infinite Solutions

Solve the equation.

6x-33=3(4x-5)

• x=3

• No Solution

• Infinite Solutions

• x= -3

Tags

CCSS.8.EE.C.7A

Solve the equation.

5x-4=4x

• No Solution

• x=4

• x= -4

• Infinite Solution

Tags

CCSS.8.EE.C.7B

Solve the equation.

12x+9=12x+11

• x=0

• No Solution

• x=1

• Infinite Solutions

Tags

CCSS.8.EE.C.7A

Solve the equation.

x-27= -(27-x)

• x= -1

• No Solution

• x=1

• Infinite Solutions

Tags

CCSS.8.EE.C.7A

Solve the equation.

-3x+4= -2-6x

• x=2

• x= -2

• No Solution

• Infinite Solutions

Solve the equation.

7(2x - 4) = 42

• x= 5

• x= 8

• No Solution

• x= 9

Tags

CCSS.7.EE.B.4A

Write as an equation: a number b increased by 3 is 7

• b - 3 = 7

• b + 3 = 7

• 7b = 3

• 3b = 7

y + 3 = 8

• y = 5

• y = 6

• y = 7

• y = 8

Tags

CCSS.6.EE.B.7