1-Step Equations
x + 16 = 38
x=22
4x + 5 = 17
x = 3
x + 23 > -11
x > -34
2x + 11 > 23
x > 6
Sara charges a fee of $30 and $5 an hour to tutor people in math. If she made $80, how many hours did she work?
Write an equation for this situation.
5x + 30 = 80 or 30 + 5x = 80
x - 8 = -11
x= -3
x/7 + 3 = 8
x=35
x - 6 < 23
x < 29
5x - 9 < 11
x < 4
A cable company charges $50 per visit and $20 for each device they install. If you owe $130 how many devices did you get?
Write an equation for this situation.
50 + 20x = 130 or
20x + 50 = 130
-3x = 27
x = -9
(x+3)/5 = 8
x = 37
16x > -48
x > -3
x/2 + 6 >= 13
x>= 14
Sarah earns $20 an hour and already has $100 saved. When will she have more than $300?
Write an inequality for this situation.
20x + 100 > 300
x/5 = -4
x = -20
2(3x + 6) = 30
x = 3
x/9 <= 4
x <= 36
3x + 9 > 36
x > 9
A teacher can have no more than 30 students in the class. If they already have 9, how many more students can join?
Write an inequality for this situation.
x + 9 <= 30
-7 + x = -15
x = -8
-4( 2x + 4) = -56
x=5
11x < 132
x < 12
-5x - 12 > 23
x < -7
Tickets to a show cost $7 each and parking is $8. A group of friends can spend no more than $50. How many tickets can they buy?
Write an inequality to represent this situation.
7x + 8 <= 50