Linear Equations
Solve: 4x + 2 = 81
x = 19.75
Solve: 7a - 5a + 4 = 14
a = 5
7 less than 12 means ...
12 - 7
Franki has $200. She spent $50 on shoes. If each shirt costs $15, how many shirts can she buy?
10 shirts
Solve: 6x = 18
x = 3
Solve: -18 - 3y = -12
y = -2
Solve: 9g - 6 = 10 + 5g
g = 4
6 more than twice a number means ...
2x + 6
A fitness club charges $40 to join plus $10 per month. If Jason has $180 to spend, how many months can he afford to pay for in advance?
14 months
Solve: 12x + 2 = 26
x = 2
Solve: -8 + 4y = 12
y = 5
Solve: 10 - 2a = 8a
a = 1
2 less than times 4 a number means ...
4x - 2
Mr. Krupa flew 5,100 miles this summer from Hartford to California (round trip). If 1,800 miles was spent flying from Hartford to Dallas, what was the distance he flew from Dallas to California? Assume that the distance from Hartford to California is the same as the distance from California to Hartford.
3300 miles from Dallas to California
Solve: 1 + 9x = 10
x = 1
Solve: 15 - r = 8
r = 7
Solve: 15 - 2a - 3a = 0
a = 3
The sum of x and 4 is ...
x + 4
Lucy has $20 to spend on dog bones. She already spent $5 on a new toy. If each dog treat costs $0.05, how many dog treats can she afford to buy?
300 treats
Solve: 2x + 8 = 11
x = 3/2 or x = 1.5
Solve: 16 = -13 + 4a - 3a
a = 29
Solve: 6 + 14a - 8a = 0
a = -1
Two times the sum of x and 4 means ...
2(x + 4)
Stacy needs a new iPod. Her current iPod holds 500 songs. If the new iPod will 200 less than 3 times as many as her old iPod, how many songs will her new iPod hold?
1300 songs
Solve: 10p - 6p + 2 - p = 23
p = 7