One-Step Equations
9 = b-2
11 = b
n/2 + 3 =6
n = 6
5n+7=2+4n
n=-5
90=-5(2n-4)
n=-7
James purchased 4 apples. He then purchased bananas for $3.00. If his total was $5.40, how much does one apple cost?
4x+3=5.40
x=0.60
r/4=-4
r = -16
-3-3p=21
p=-8
-8-x=x+8
x=-8
4(7x+6)=220
x=7
Jill had a bag of 25 candies. She gave each of her friends 3 pieces of candy, and was left with 7 candies. How many friends did Jill give candy to?
25-3x=7
x=6
m + 9 = -1
m = -10
x/2-9=1
x = 20
4v+7v-16=3v-8v
v=1
-98=6(5a+3)-a
a=-4
Lucas gave away half of his Magic cards to a friend. He then bought 15 more, and now has 33 Magic cards. How many Magic cards did he begin with?
x/2+15=33
x=36
-54 = -9b
6 = b
k/2+1=4
k=6
1-5b+4b=1+2b
b=0
9+7x=8(x+2)
x=-7
A wise man once said, "if you double my age and then take away 24, you have my brother's age". If his brother is 40, how old is the wise man?
2x-24=40
x=32
3 + x = -2
x = -5
5+x/10=4
x=-10
11+5v=2v-5-v
v=-4
-8m+24=-8(3+2m)-8
m=-7
The sum of three consecutive numbers is 39. What are the three numbers?
x+x+1+x+2=39
12, 13, 14