One-Step Equations Add
n + 2 = 8
n = 6
12=x - 5
x = 17
16.2=2.6+y
y = 13.6
Lisa is cooking muffins. The recipe calls for 7 cups of sugar. She has already put in 2 cups. Define a variable, n, and write an equation to find how many more cups does she need to put in?
n=how many more cups does she need to put in
n+2=7
operations
+ - x and divide
11 = v + 11
v = 0
x - 8 = 11
19
d -3.55= 28.7
d = 32.25
Trevon could not remember how much money he had in his wallet before he went to the movies. However, he now has $51 and spent $12 at the movies. Define a variable, n, and write an equation to find out how much money was in his wallet before he went to the movie.
n=$ in wallet before the movie
a letter that represents a number
variable
f + 312 = 725
f = 413
34 = x - 40
x = 74
5 2/(3)=c+2 3/4
c =
2 11/12
Last week Julia ran 30 miles more than Pranav. Julia ran 47 miles. Define a variable, n, and write an equation to find how many miles Pranav ran?
n=how many miles Pranav run
n+30=47
numbers, variables, or the product of the two separated by plus and minus signs.
terms
100 = 56 + x
x = 44
x - 64=28
x = 92
14=r+12 3/4
r =
1 1/4
Last Friday Adam had $22.33. Over the weekend he received some money for cleaning the attic. He now has $32. Define a variable, n, and write an equation to find how much money he received?
n= how much money he received
22.33+n=32
two expressions set equal to each other
equation
475.25 + x= 506.37
x = 31.12
x - 503=2,253
x = 2,756
x+8.4=9 1/4
x = 0.85
Your mother gave you $13.32 with which to buy a present. This covered 3/5 of the cost. Define a variable, n, and write an equation to find how much the present cost?
n=how much the present cost
3/5n=13.32
the answer to a variable equation
solution