combining like terms
5y - 3y + 2y
4y
5(6w + 3)
30w + 15
3m + 14 = 38
m = 8
Write an equation that models how to solve this problem.
Jason has paid a total of $530 for his cable. If Jason pays a $50 installation fee and a $80 monthly service charge for his cable. For how many months, x, has he had this service?
530 = 50 + 80x
Graph the inequality: x > -3
Look at graphs: open circle shaded to the right
6 - 3m + 5 - 7m
11 - 10m
-4(5 - 2h)
-20 + 8h
-12 = 3(x + 1)
-5 = x
Guillermo has 30 stickers. He is keeping 12 and splitting the rest with his 3 friends. How many sticker should he give his friends?
30=12+s/3
6 stickers
Solve and graph: 3x + 6 > -3
x > -3
open circle shaded to the right
Simplify
-4(3x + 2) + 10
-12x + 2
x/2 -6=-10
x = -8
Benjamin rides the bus to work. He spends $2 per ride. His maximum monthly budget for riding the bus is $60. How many bus rides can Benjamin ride?
2n<=60
n<=30
Solve and graph:
m/-3-4<=-8
m>=12
; open circle shaded to the right
5(2w - 6) - 4w
6w - 30
x/-5 +45=-12
x = 285
You are babysitting to earn money for Christmas. You need a minimum of $200 for gifts. You charge a $20 fee and $10 per hour. What is the minimum number of hours of babysitting do you need to work?
10h+20>=200
h>=18
Sandra solved the following inequality. 3x - 8 > 7
Her first step was to subtract 8 from both sides. Is her first step correct? Explain
No, she should add 8 to both sides because adding is the inverse of subtracting.