Solving Equations
2x - 8 = 4
x=6
3x+3<9
x < 2
Switch Gears Activity Boxes sends a new building activity in the mail each month. Derek prepaid an 8-month subscription for his daughter. He signed up during their holiday sale and received $15 off the total cost. Derek paid $81 in all. Which equation can Derek use to find x, the regular cost per month?
8x - 15 = 81
x = 12
The difference between a number and 7 is greater than -23
x-7 > -23
x>-16
6x + 29 = 53
x=4
-x+5 < -10
x > 15
Riley and her friends went to the Color Splat paint-tag course last weekend. The course charges $40 for an hour of group tag plus a rental fee for each paint marker. Riley's group played for one hour, rented 6 paint markers, and paid a total of $94.Which equation can you use to find the rental fee, x, for each paint marker?
6x+40=94
x = 9
Eight more than the quotient of a number and -5 is less than or equal to 6.
(x/-5) + 8≤ 6
x ≥ 10
-8 + x = -5
x = 3
(m/-6)+16 > 19
m <-18
Mr. Mosley ordered pizzas for the volunteers at Highland School's fundraiser event. He ordered 12 large pizzas from the Roman Rounds pizzeria. Since this was a bulk order, Roman Rounds reduced the price of each large pizza by $2. The total came to $192.Which equation can you use to find the amount of money, p, Roman Rounds normally charges for a large pizza?
12(p-2) = 192
p = 18
14 more than twice a number is at most 50.
2x - 14 ≤ 50
x ≤ 32