One-Step Equations
Solve. What is the value of x?
x + 3 = 8
5
Solve. What does x equal?
2x + 4 =10
x = 3
Solve. What does x equal?
x+4+2=8
x=2
Solve. What does y equal?
4y + 2 = 5y
y=2
What does a variable represent?
An unknown value.
Solve. What is the value of y?
6 - y = 2
y=4
Solve. What does y equal?
3y - 5 =25
y=10
Solve. What does x equal?
3x - 6 + 2x = 19
x=5
Solve. What does x equal?
7x + 3 = 2x - 2
x=-1
You have $14 bucks saved for your mom's Birthday gift. Having the tastes of an adolescent, she'd like to spend the day binge-watching all 800 episodes of her favorite anime, One Piece. You'd love to indulge her--but the DVD set costs $3,000. How much more money do you need?
x + 14 = 3000
x = 2986 You need $2,986 more dollars.
Solve. What is the value of x?
3x = 24
x=8
Solve. What does p equal?
-6p + 2 = -28
p=5
Solve. What does y equal?
3 - 2y +2 +3y = 14
y=9
Solve. What does p equal?
2p + p - 6 = 9p
p=-1
Write an equation for the following:
Mr. Bandicoot got $50 for being awesome. Feeling happy, he swung by the Cheesecake Factory and bought the most decadent cake available. Mr. Bandicoot then had $8 left. Let x represent the cost of the cake.
50 - x = 8
Solve. What is the value of c?
c/2 = 6
c=12
Solve. What does x equal?
x/4 + 7 = 10
x=12
Solve. What does b equal?
2(3b - 4) = 16
b=4
Solve. What does x equal?
-4x + 3x + 3 + 6 = 2x
x=9
Write and solve an equation for the following:
Pedro takes his World of Warcraft guild to dinner. The bill comes out to $42. He decided to split it evenly across the guild's 14 members. How much did each diner spend?
14x = 42
x = 3
Solve. What is the value of a?
a^2 = 36
Solve. What is the value of x?
x3 = 8
x = 2
Solve. What does x equal?
32 + 42 = x2
x=5
Solve. What does c equal?
9( c - 1) = 36
c= 5
Write and solve an equation for the following:
Jenny scored 89 points on her first math test and 78 on her second math test. She the took a third test. She earned a total of 255. How many points did she get on her third test?
89 + 78 + x = 255
167 + x = 255 x = 88