Solving Equations
Solve for x:
x+8= 13
x=5
Three more than twice a number is 17, find the number.
7
x3x5
x8
Factor: 2x3-4x2
2x2(x-2)
What is 30% of 40?
12
3-2x = 11
x = -4
Find three consecutive integers whose sum is 39.
12, 13, 14
3x2(2x3-x+1)
Factor: x2-25
(x-5)(x+5)
If a recipe that makes 12 cupcakes needs 4 cups of sugar, how much sugar will be needed to make 18 cupcakes?
6 cups
2(x +7) = x +22
x = 8
The cost of a sandwich is 2 more than 3 times the cost of a drink. If the total cost of lunch (sandwich and drink) is $14, how much did the drink cost?
(x3)5
x15
Factor: x2+8x-20
(x+10)(x-2)
Calculate the final bill if you buy dinner that costs $65 but then you have to pay 8% tax and then after tax you leave a 20% tip.
$84.24
2-(x+4) =4
x=-6
A plumber charges $100 plus $30 an hour to fix a leak. If the total repair bill was $220 how many hours did the plumber work?
4 hrs
(x2y9)/(x5y)
y8/x4
Factor Completely: 3x3-27x
3x(x-3)(x+3)
What number is 65% of 80?
52
3(x+3) - 2(2x -1) = 3x + 7
x=1
The perimeter of a rectangle is 50, if the length is 5 more than the width, find both the width and length.
length is 15, width is 10
What is the square root of 72 in simplest radical form?
6sqrt(2)
Factor Completely: 2x2-4x-6
2(x-3)(x+1)
two number are in a ratio 5:3, if the sum of the number is 40, what are the two numbers?
25 and 15