Integers
5 - (-4)
9
x + 6 = 13
x = 7
Simplify 3a -6 - 2a
a - 6
4 books cost $12
What about 10 books?
$30
10% of 55
5.5
-3 - 5
-8
a - 7 = 17
a =24
factor 10x - 40
10(x-4)
5 tickets cost $13. What about 20 tickets
$52
10% of 130
13
|5|+ | -7|
12
28 + n = 0
n = -28
Simplify 4x + 5 - 2x -6
2x - 1
3 carnation for every 4 roses. How many roses for 12 carnations?
16 roses
20% of 80
16
-5.5 + 2
-3.5
2x = 15
x = 7.5
simplify
3(x - 1)
3x -3
5 squares foe every 9 triangles. How namy triangles for 10 squares
18
12 is what pecent of 120?
10%
2.5 - (8)
-5.5
2x - 2 = 10
x = 6
Simplify
-4(x - 1) + 2
-4x +6
15 teachers for 180 students. How many students per teacher?
12 students
25% of 84
21