Write it
1/5 x - 5 = 17
2k + 5 = 17
k = 6
3a - 5 = 4
a = 3
m/5 + 4 = 12
m = 40
21q - 39 = 234
q = 13
Twelve more than seven times a number equals thirty three.
7x + 12 = 33
19b + 314 = 1663
b = 71
4j - 71 = 29
j = 25
w/317 + 596 = 1,639
w = 330,631
g/11 + 37 = 128
g = 1001
On a trip a family drives 200 miles the first day, and 350 miles per day each remaining day. How many days, x, will they travel to reach the distance of 1,600.
200 + 350x = 1,600
12s + 27 = 171
s = 12
2x + 7/2 = 7
x = 7/4 or 1 3/4
1.25x + 8 = 4.5
x = -2.8
1/3 x + 7 = 10
x = 9
Sarah needs $110 to buy a concert ticket. She already has $16 and she will earn the rest by working 10 hours at her job. Use x, to determine her houly earnings.
16+ 10x = 110
59 - 4n = 91
n = -8
2.5x + 12 = -3
x = -6
11x - 16 = 149
x = 15
1.9 − 2.2c = 3.88
c = -0.9
Nick bought a salad for 11.98 and three large pizzas. If his total was $38.95. Use x, to represent the cost of each pizza.
11.98 + 3x = 38.95
Amy receives 30 rewards points for signing up and 8.5 points for each visit to the movie theater. If she needs 115 points for a free movie ticket, write an equation to represent how many visits it will take.
30 + 8.5x = 115
10 visits
Members of a softball team raised $1943.50 to go to a tournament. They rented a bus for $1148.50 and budgeted $53 per player for meals. Write and solve an equation which can be used to determine x, the number of players the team can bring to the tournament.
1148.50 + 53x = 1943.50
15 players
Lauren needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 3.75 hours and charged her $119 for parts. The total was $400.25. Write and solve an equation which can be used to determine x, the cost of the labor per hour.
119 + 3.75x = 400.25
$75 per hour
Carter wants to ride his bicycle 28.7 miles this week. He has already ridden 17 miles. If he rides for 3 more days, write and solve an equation which can be used to determine m, the average number of miles he would have to ride each day to meet his goal.
17 + 3x = 28.7
3.9 miles per day