Solving Equations

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

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5
• Add 6 to both sides and multiply both sides by 5
• Subtract 6 from both sides then multiply both sides by 5
• Subtract 6 from both sides then divide both sides by 5

Tags

CCSS.7.EE.B.4A

Write as an equation: a number b increased by 3 is 7

• b - 3 = 7

• b + 3 = 7

• 7b = 3

• 3b = 7

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Write as an equation: 9 less than a number r is 15

• 9 + r = 15

• 9 - r = 15

• 15/9 = r

• r - 9 = 15

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve:
-4x = 24

• 20
• -20
• 6
• -6

Tags

CCSS.6.EE.B.7

Solve:

5x - 4 + 2x = 3

• 1

• 2

• 3

• 4

Solve:
7x - 3x - 8 = 24

• 8
• -8
• 3.2
• 4

Tags

CCSS.8.EE.C.7B

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

A toy company spends $1500 per day for factory expenses plus $8 to make each teddy bear.  They sell the teddy bears for $12 a piece.  Which equation could be used to find the number of bears t the company has to sell in one day to equal its daily cost?

• 1500 + 8t = 12
• 12 + 8t = 1500
• 1500 + 8t = 12t
• 8t = 12t + 1500

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.C.9

Jason says that 10 less than one third of his age is 11 years old.  How old is Jason?

• 3 years old
• 7 years old
• 57 years old
• 63 years old

Tags

CCSS.7.EE.B.4A