One-Step Addition & Subtraction
x + 5 = 12
x = 7
3x = 18
x = 6
Sarah bought 3 pens for a total of $9. This equation shows the cost of one pen.
What is 3p = 9?
This is the math symbol that represents "less than".
What is <?
When graphing $x > 4$, you use this type of circle on the number 4.
What is an open circle?
y - 4 = 10
y = 14
y/4 = 5
y = 20
You had some money, spent $5, and now have $12. This equation represents the starting amount.
What is x - 5 = 12?
Translate this sentence into an inequality: "You must be at least 12 years old to ride the roller coaster."
What is x is less than or equal to 12?
When graphing y is less than or equal to 9, the arrow points in this direction.
What is to the left?
15 = a + 8
a = 7
8m = 56
m = 7
A rectangle has an area of 24 square inches and a length of 6 inches. This is the equation to find the width.
What is 6w = 24?
Yes or No: Does x = 5 make the inequality x + 2 > 8 true?
What is No?
The graph of m is greater than or equal to -2 has a closed circle on -2 and an arrow pointing this way.
What is to the right?
m - 12 = 25
m = 37
p/2 = 14
p = 28
A basketball team needs to score 50 points to win. They already have 32 points. This equation represents the points they still need.
What is 32 + p = 50
Translate this sentence into an inequality: "The maximum capacity of the elevator is 15 people."
What is p is less than or equal to 15?
An open circle on 5 with an arrow pointing to the left represents this inequality.
What is x < 5?
3.5 + k = 10
k = 6.5
1.5x = 6
x = 4
Four friends split a dinner bill equally. Each person pays $12. This equation represents the total bill.
What is b/4 = 12
Name three possible integer solutions for the inequality x > 10.
What are 11, 12, 13?
A number line has a closed circle on 0 and shades all positive numbers to the right. This is the inequality shown.
What is x is greater than or equal to 0?