Evaluate if x=7
x+ 14=
21
6y + 3y =
9y
y - 3 = 10
What is y?
y= 13
4 (x-3)= 8
What is x?
x=5
A gym charges a $20 sign-up fee plus $15 per month. If you paid $80 in total, how many months did you pay for?
Equation: 15m + 20 = 80
Solution: 15m = 60 → m = 4
Answer: You paid for 4 months.
x - 4 =
3
3(x + 4) =
3x + 12
5a= 45
What is a?
a=9
6 + 3 = 3(y + 1)
What is y?
y= 2
Hannan earns $10 per hour and already had $15 saved. After working some hours, he had $65. How many hours did he work?
Equation: 10h + 15 = 65
Solution: 10h = 50 → h = 5
Answer: He worked 5 hours.
4x
28
5b + 2b - 8 =
7b - 8
3b + 2= 17
What is b?
b= 5
6n + 8 - n + 7 = 40
n=5
Maria bought 3 notebooks and a $5 pen. She spent $17 in total. How much did each notebook cost?
Equation: 3n + 5 = 17
Solution: 3n = 12 → n = 4
Answer: Each notebook costs $4.
3x-2=
19
5(2m + 5n) =
10m + 25n
5y -7 = 18
What is y?
y= 5
2(3x + 1) = 20
x = 3
Betiel bought 2 shirts and a $12 hat. She spent $42 in total. What was the cost of each shirt?
Equation: 2s + 12 = 42
Solution: 2s = 30 → s = 15
Answer: Each shirt costs $15.
3x + 2x=
35
4p + 7 - 3p + 2 =
p + 9
2x + 3 - 1 = 10
What is x?
x= 4
3y - 4 + y = 12
y = 4
A theme park charges $12 for admission and $3 per ride. If Aisha spent a total of $39 and went on the same number of rides as her friend, how many rides did she go on?
Equation:
12 + 3r = 39
Answer: Ava went on 9 rides.