8.8C Solving Equations

What is the solution to this equation?

3x + 4 = 2x - 4

• 1.6

• 8

• 7

• -8

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

What is the first step that you need to make in order to solve this equation?

12x + 32 = 62 + 15x

• Subtract 12 to both sides

• Subtract 12x to both sides

• Add 12x to both sides

• Add 12x to both sides.

Tags

CCSS.6.EE.B.7

8w - 8 = - 4x + 16

• 8
• 16
• 24
• 2

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

The objective when solving an equation is to....

• isolate the variable.
• check the solution.
• guess and check.
• Combine Like Terms.

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

What operation would you perform first and then second when solving for m in the following equation?
10 + 7m = 17

• subtract 10, divide by 7
• divide by 7, subtract 10
• multiply by 7, add 10
• add 10, multiply by 7

Tags

CCSS.7.EE.A.1

CCSS.7.EE.B.3

CCSS.7.EE.B.4

UPS charges $7 for the first pound, and $0.20 for each additional pound. FedEx charges $5 for the first pound and $0.30 for each additional pound. Use your equation to find out how many pounds it will take for UPS and FedEx to cost the same.

• 15 pounds

• 20 pounds

• 120 pounds

• 4 pounds

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

What value of k makes this equation true?

• k = -2
• k = -8
• k = 8/3
• k = 2

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

5x - 14 = 8x + 4

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

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

7x = 3x + 24

• 6
• 10
• 14
• 4

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

472 students are going on a field trip.  120 students will be returning home and the rest will be spending the night in cabins. If a cabin sleeps 8 people, how many cabins need to be rented?

• 4 cabins
• 44 cabins
• 59 cabins
• 74 cabins

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1