One Step Equations Expressions

Solve for x:

• x = 20

• x = 7

• x = 10

• x = 3

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.

After 4 students joined a class, the class has 32 students. Which equation can be used to find n, the number of students in the class before the new 4 students joined?

• n - 4 = 32

• 4n = 32

• n + 4 = 32

Which choice models this situation? Anna participated in a read-a-thon. Mr. Cole pledged $4 per book and gave Anna $44. How many books did Anna read?

• b - 4 = 44

• b + 4 = 33

• 4b = 44

• b/4 = 44

To solve 4c/5 = 12, you would
         

• multiply by 4, divide by 5

• multiply by 5, divide by 4

• add 4, subtract 5

• add 5, subtract 4

6x = 42.... x = 

• x = - 7

• x = 36

• x = 7

• x = - 36

n - 9 = 18....n = 

• n = 27

• n = 11

• n = 9

• n = - 27

r + (- 9) = - 5,   r = 

•  r = - 4

• r = 4

• r = - 14

• r = 14

m/6 = - 6....m =

•  m = - 1

• m = 1

• m = - 36

• m = 36

- 4d = 16, d = 

• d = 4

• d = 20

• d = 12

• d = - 4