Unit 6 Mid Unit Algebra

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 
• Subtract 62 from each side.
• Multiply each side by 62.
• Add 123 to each side.

Tags

CCSS.6.EE.B.7

15 = 2a + 7

• 2
• 4
• 12
• 14

Tags

CCSS.7.EE.B.4A

3c + 5 = 23

• c = 3
• c = 6
• c = 7
• c = 18

Tags

CCSS.7.EE.B.4A

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.

Tags

CCSS.7.EE.B.4A

Solve for x:
5x - 14 = 8x + 4

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

x + 2 = x + 4

• all real numbers
• no solution
• x = 0

Tags

CCSS.8.EE.C.7A

Peppy Pets charges a flat fee of $15 plus $3 per hour to keep a dog during the day. Which equation represents this situation?

• Y = 3 + 15x

• Y = 15 + 3x

• Y = 15 - 3x

• Y = 3x -15

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Solve for f:
f - 4 = 6f + 26

• f = -5
• f = 5
• f = 6
• f = -6

Solve the equation:
7x - 4 = 3 + 8x

• x = 7
• x = -7
• x = 2/7
• x = 11

ax + c = R
(solve for x) 

• ax = R + c
• ax = R - c
• x = a(R-c)
• x = (R-c) / a 

Tags

CCSS.7.EE.B.4A