Addition and Subtraction
x - 48 = 28
5x=25
5
these are the 4 operations
What are addition, subtraction, multiplication, and division?
Ms. Wilson is cooking muffins. The recipe calls for 7 cups of sugar. She has already put in 2 cups. How many more cups does she need to put in?
x + 2 = 7; 5 cups
The person who famously said "One if by land, two if by sea"
Who is Paul Revere
x + 66 = 21
-45
-126=14x
-9
The term for operations that are opposite each other
What are inverse operations
If the weight of a package is multiplied by 5/7 the result is 40.5 pounds. Find the weight of the package.
5/7x=40.5; $56.7
The distance of a number from zero
What is absolute value
x + (-17) = 56
73
-5=x/18
-90
The way you check your answer for a one step equation problem
What is plugging in your answer for the variable?
How many boxes of envelopes can you buy with $12 if one box costs $3?
3x=12; 4
This is the first line in the Declaration of Independence.
We hold these truths to be self-evident, that all men are created equal
-15 + x = -9
6
-143=-11x
The term for something directly next to a variable, with an implied operation of multiplication
What is the coefficient?
Ms. Sayour and her best friend found some money buried in a field. They split the money evenly, each getting $24.28. How much money did they find?
x/2=24.28; $48.56
When a warm front moves into an area where there is a cold front, this forms (______ front)
What is an occluded front?
-7 + m = 8
15
-17x=-204
12
This is when two terms are similar in terms of how they are structured, ex: 3x and 6x
What are like terms
Your mother gave you $13.32 with which to buy a present. This covered 3/5 of the cost. How much did the present cost?
3/5x=13.32; $22.2
b/12 = 7
84