One and Two Step Equations
Multi-Step Equations
and
Variable on Both Sides
Ratios / Proportions
and
Cross Multiplication
Percent Problems
Rewriting Equations
100
Solve x - 7 = 11
18
100
Solve 8x - 3x -10 = 20
6
100
If there are 20 dogs and 15 cats. What is the ratio of cats to dogs?
3:4 3/4 3 to 4
100
What percent of 25 is 17?
68
100
Solve for b: A = (1/2)(bh)
2A/h
200
Solve x + 14 = 4
-10
200
Solve 7x + 2(x + 6) = 39
3
200
Set up a proportion: t is to 21 as 40 is to 28
t/21 = 40/28
200
What percent of 20 is 10
50
200
Solve for b: A = bh
A/h = b
300
Solve (x/2) + 5 = 11
12
300
Solve (3/2)(3x + 5) = -24
-7
300
Solve the proportion: c/8 = 11/4
22
300
What number is 45% of 49?
22.05
300
Solve for s: P = 4s
P/4 = s
400
Solve 4y - 4 = 16
5
400
Solve 7 - 8x = 4x - 17
2
400
Use cross multiplication: 8/x = 6/15
120
400
20 is 12.5% of what number?
160
400
Solve for h: P = 2b + 2h
(P - 2b)/2 = h
500
-x + 5 = -20
25
500
Solve 3 - 4a = 5(a - 3)
2
500
Use cross multiplication to solve the proportion: 6/(t + 4) = 42/77
7
500
50 is 125% of what number?
40
500
Solve for F: C = (5/9)(F -32)
(9/5)C + 32 = F