Friday Review of Equations and Inequalities

Solve for y:
3x + y = 12

• y = -3x +12
• x = y + 4
• x = y + 12
• y = 3x -12

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

CCSS.6.EE.B.6

CCSS.6.EE.B.7

W = A/L
 (solve for A) 

• A = W/L
• A = LW
• A = W + L
• A = W - L

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

IR = V
(solve for R) 

• R = IV
• R = I/V
• R = V/I
• R = V - I

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

Solve for x:
6(2x + 1) = 18

• 3
• 17/12
• 1
• 2

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve for x: 
2 - 4x = 3x - 12

• 2
• -14
• 10
• -2

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve for x:
7 - 2(10x + 1) = 25

• 2/5
• 2
• 1
• -1

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve:
2(2x + 3) = -6(x + 9)

• 1.2
• 6
• -6
• 7.5

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve:
2(a + 4) = 2a - 8 + 4a

• 3
• -3
• -4
• 4

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

CCSS.6.EE.B.5

CCSS.6.EE.B.6

Simplify each equation. Tell whether the equation has one, no, or infinite solutions.
3x - 7 = 3(x - 3) + 2

• one
• no solutions
• infinite solutions

A taxi charges $3, plus $1.50 for each mile traveled.  Mr. Lewis rode in the taxi from his home to the airport and was charged $30.  How many miles does Mr. Lewis live from the airport?

• 18 miles
• 20 miles
• 22 miles