Writing & Solving Equations - Review

Which equation would help you solve for the variable?

Marcus needs to sell 25 tickets for a fundraiser. So far, he has sold 9 tickets. How many more tickets, t, does he still need to sell?

• t - 9 = 25

• t + 9 = 25

• 9t = 25

• t/9 = 25

Which equation would help you solve for the variable?

Lisa finished a race in 58 seconds. This was 4 seconds faster than her best practice time. What was t, Lindsey's best practice time?

• t + 4 = 58

• t - 4 = 58

• 4t = 58

• t/4 = 58

Which equation would help you solve for the variable?

Jack needed new pencils for school today. He took 6 pencils from a new box of pencils. If there are 18 pencils left in the box, how many pencils, p, were in the brand new box?

• p - 6 = 18

• p + 6 = 18

• 6p = 18

• p/6 = 18

Becky is preparing for her younger sister's birthday party. She splits a jar of lollilops evenly among 6 goody bags. Each bag ends up with 4 lollipops.

Which equation can you use to find the number of lollipops n in the jar?

• n/6 = 4

• n - 4 = 6

• 4n = 6

• n + 6 = 4

Tags

CCSS.HSA.CED.A.3

Write the equation for the model.

(hint: the red squares represent negative numbers)

• 10=2-x

• -10=-x+2

• -10=x-2

• -10=x+2

Write the equation for the model.

(hint: the red squares represent negative numbers)

• -3x=18

• 3=-18

• 3x=18

• 3x=-18

The objective when solving an equation is to....

• isolate the variable.
• check the solution.
• guess and check.
• Combine Like Terms.

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

19  + a  =  -50

• a = -950
• a =  -69
• a = -31
• a = -50/19

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

What is the inverse operation needed to solve for p?
765 = p - 254

• subtraction
• addition
• multiplication
• division

Tags

CCSS.8.EE.C.7

5.    6b = 30

• x = 36
• x = 24
• x = 180
• x = 5

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7