Solving Equations High School

Solve: x + 3x - 2x = 12

• 2
• 6
• -2
• -6

Tags

CCSS.8.EE.C.7B

Translate: 
Four times a number plus six is 30.

• 4 + 6 = 30
• 4x + 6 = 30
• x + 4 times 6 = 30
• 30 = 4x

2x + 3(5x - 7) = 47

• x = 1
• x = 2
• x = 3
• x = 4

Tags

CCSS.8.EE.C.7B

The trapeze act features bars at two different heights. The high bars are three feet higher than double the height of the low trapeze bar. The low bars are 18 feet high. Which equation can be used to find the height of the high bar, h? 

• h = (18 +3) x 2
• h = (18 x 2) +3
• h = (18 x 3) x 2
• h = (18 x 2) - 3

Tags

CCSS.HSA.CED.A.3

Write an equation.
A number is doubled, then 9 is added. The result is 23.

• 2x + 9 = 23
• 2x - 9 = 23
• 2x + 9x = 23
  2x + 9x =23
• 9 - 2x = 23

Tags

CCSS.HSA.CED.A.3

Solve:

• x = 24
• x = 12
• x = 17.5
• x = 19.5

Tags

CCSS.7.EE.B.4A

A college student is moving into a campus dormitory.  The student rents a moving truck for $20 plus $2 per mile.  Before returning the truck, the student fills the tank with gasoline, which costs $30.  The total cost is $150.  How many miles did the student drive the truck?

• 200 miles
• 100 miles
• 50 miles
• 75 miles

Tags

CCSS.7.EE.B.4A

Solve:

• 6
• 5
• -5
• 6

Tags

CCSS.8.EE.C.7B

After selling 27 tickets each to two large groups of tourists for the circus, Adam had 53 tickets remaining. Which equation can be used to find how many cards, c, Adam had before selling some of the tickets?

• c - 27 = 53
• c + 2(27) = 53
• c - 2(27) = 53
• c + 27 = 53

Tags

CCSS.HSA.CED.A.3

Solve:
^{-3x + 6(1 + 2x) = 2x + 27}

• x = 3
• Many Solutions
• No Solutions
• x = (-11)