One-Step Equations
Solve for b:
15 = b + 3
b = 12
Solve for x:
2x + 3 = 15
WORK
2x + 3 = 15
2x + 3 - 3 = 15 - 3
2x = 12
(2x)/2 = 12/2
x = 6
Five friends equally split a restaurant bill that comes to $35.00. How much does each friend pay?
Each friend pays $7.00.
x + 20 is equal to or greater than 41
x = 21
Solve for x:
x - 13 = 12
x = 25
Solve for a:
15a + 5 = 65
WORK
15a + 5 = 65
(15)a + 5 - 5 = 65 - 5
(15)a = 60
15/15a = 60/15
a = 4
My sister gave me her collection of shells to add to the 13 shells of my own. How many shells do I have altogether if she had 39 in her collection?
I have 52 shells all together.
8x > 80
x = 11
Solve for t:
5t = 20
t = 4
Solve for t:
m/5 + 9 = 11
m/5 + 9 = 11
m/5 + 9 - 9 = 11 - 9
m/5 = 2
5x5 = 2 x 5
m = 10
Vanessa puts her $45 birthday money in her piggy bank. She also puts the money she earned from cutting lawns. When Vanessa counts her money, she discovers she now has $72. How much money did she make cutting grass?
She made $27.00 cutting grass.
6x - 5 > 31
x = 7
Solve for m:
48/s = 12
s = 4
Solve for x:
13 + 7x = 27
13 + 7x = 27
13 - 13 + 7x = 27 - 13
7x = 14
7/7 = 14/7
x = 2
Online concert tickets cost $37 each, plus a service charge of $8.00 per ticket. The Web site also charges a transaction fee of $15.00 for the purchase. You paid $240.00. How many tickets did you buy?
You bought 4 tickets.
x - 15 is greater than or equal to 225
x = 240
Solve for p:
121/p
p = 11
If a = 3, b= 4 and c = 5, evaluate the following: a(b + c) - a
a(b + c) - a
3(4+5) - 3
3(9) - 3
27 - 3
= 24
Mr. Herman’s class is selling candy for a school fundraiser. The class has a goal of raising $500 by selling c boxes of candy. Foe every box they sell, they make $4.
Write an equation and find the answer of how many boxes of candy they need to sell.
They need to sell 125 boxes of candy.
10x + 30 > 360
x = 34