One-Step Equations
8.2m = 98.4
What is m?
m = 12
-3m - 1= 2m-1
What is m?
m = 0
y + 25 + 3y = 61
What is y?
y = 9
64 = 8(r + 2)
What is r?
r = 6
If a rectangle has a length of 6 inches, a width of "x" inches, and a perimeter of 20 inches, what is the width of the rectangle?
Write an equation and solve for x.
2(6) + 2x = 20
12 + 2x = 20
2x = 8
x=4
11 + r = 29
What is r?
r = 18
-10p + 9p = 12
Solve for p
p = -12
19x -5 = 10 +24x
What is the value of x?
x=-3
3(f - 2) + 7f -7 = f + 5
What is f?
f = 2
We are at a Seattle Seahawks game. We buy 4 hotdogs and 1 drink. We spend a total of $17. If the drink costs $5, how much does one hotdog cost?
One hotdog costs $3
7h = 21
What is the value of h?
h = 3
-3a + 11 -7a = -9
What is the value of a?
a = 2
2a + 5(a - 4) = 8
What is the value of a?
a = 4
3/4 (d + 4) = 9
What is d?
3/4(d + 4) = 9
3/4d + 3 = 9
3/4d = 6
d = 8
A phone company charges $18.95 per month, plus $0.10 per minute for calls. If a family bill is $26.15, how many minutes did they use that month?
72 minutes
a/9 =-3
What is the value of a?
a= -27
6(a + 3) = -6
Find the value of a.
a=-4
6(2y + 6) - 4y - 5= 25
What is the value of y?
y= -3/4
72 = 5(4x + 10) +2
72 = 5(4x + 10) +2
72 = 5(4x + 10) +2
What is x = 1
You have a part time job. You work 3 hours on Friday and 6 hours on Saturday. You also receive an allowance of $20 per week. You earn $92 this week. How much do you earn PER HOUR at your part time job?
You earn $8 per hour
x - 4.3 = 5.7
What is the value of x ?
x=10
5a + 3.1 + 2a = -40.3
What is the value of a?
5a + 3.1 + 2a = -40.3
7a + 3.1 = -40.3
7a = -43.4
a = -6.2
-6(m + 1) + 18 = 24
What is the value of m?
m = -2
9(y - 4) - 7y = 5(3y - 2)
What is y?
y = -2
The freshman class is selling boxes of cookies to raise money. They purchased 50 boxes of cookies and paid a delivery fee of $25. The total cost, including the delivery fee, was $225. What is the cost of each box of cookies?
Each box of cookies cost $4