One-Step Equations
x – 6 = 12
x = 18
2x – 4 = 8
x = 6
57 – 19
38
What is the difference between 18 and 11?
7
4x = 20
x=5
y – 3 = 5
y=8
3y – 9 = 6
y=5
84 – 27
57
You have 45 stickers. Your friend has 32. What is the difference?
13
6x = 24
x=4
a – 10 = –2
a = 8
5a – 5 = 15
a=4
126 – 48
78
A box holds 60 pencils. After giving away 25, what is the difference?
35
x + 100 = 180
x = 80
m – 7 = 0
m = 7
4z – 12 = 16
z = 7
235 – 89
146
School had 120 students last year and 95 this year. What is the difference?
35
2(x + 10) = 30
x = 5
k – 15 = 1
k = 16
7k – 14 = 7
K = 3
504 – 276
228
Last year, a library had 250 books. This year, the library donated 45 books and purchased 80 new books. How many books does the library have now? What is the difference in the number of books compared to last year?
x² = 49
x = 7