7th Simple equations

x - 8 = -5 

• x = 13
• x = -13
• x = 3
• x = -3

Tags

CCSS.6.EE.B.7

9a - 5 = 22

• a = 4
• a = 1
• a = 3
• a = 5

Tags

CCSS.7.EE.B.4A

3 (x - 2) = 9

• x = 5
• x = 7
• x = 6
• x = 8

Tags

CCSS.7.EE.B.4A

2 (s + 2) = 18

• s = 10
• s = 7
• s = 11
• s = 6

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

A triangle has angles of 37, 58 and x degrees. What is the value of x?

• 85 degrees

• 95 degrees

• 265 degrees

• 100 degrees

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve: 4x - 3 = 2x + 5

• x=4

• x=4/3

• x=-4

• x=1

Find the value of x where 6x - 5 = 4x - 15

• -10
• -5
• -2
• -1

What must you do when you start to solve an equation ?

• Simplify it!

• Make it harder

• Multiply everything.

• Subtract first!

Tags

CCSS.8.EE.C.7B

Pammy is 2 years older than twice the age of her brother. The sum of their ages is 17.

If x represents the age of her brother, which equation represents this situation?

• 2x + 2 = 17

• 2(x + 2) = 17

• x + 2(x + 2) = 17

• x + (2x + 2) = 17

Tags

CCSS.HSA.CED.A.3