One-Step
m/-3 = 6
m = -18
2n - 5 = 7
n = 6
2(8 + p) = 22
p = 3
1/4 (m - 16) = -1
m = 44
You are ordering tulip bulbs which are $2.00 a bulb plus $3.00 shipping from a flower catalog. You have $15 to spend. Create an equation to match the situation then solve.
2x + 3 = 15
x = 6
5x = 70
x = 14
-1 = 6 + 7x
x = -1
-48 = 8(x + 2)
x = -4
1/2 (x - 12) = 4
x = 20
Beneath Earth's surface, the temperature increases 10 degrees Celsius every kilometer. Suppose that the surface temperature is 22 degrees Celsius, and the temperature at the bottom of a gold mine is 62 degrees Celsius. What is the depth of the gold mine? Give an equation and solution.
10k + 22 = 62
k = 4
y + 4 = 10
y = 6
7 - 3k = -14
k = 7
m + 5(m +1) = 17
m = 2
9 = 1/3 (9 +3x)+5
x = 1
Suppose you are helping to prepare a large meal. You can peel 2 carrots per minute. You need 60 peeled carrots. How long will it take you to finish if you have already peeled 18 carrots?
2m + 18 = 60
m = 21
-5 - x = 10
x = -15
14 = 6 - 2p
p = -4
17 - 4(6 - p) = -59
p = -13
1/2 (4x + 20) + 4 = 24
x = 5
Anita earns 60 points every time she shows at a grocery store. She needs a total of 2,580 points to receive a free prize. So far, she has earn 480 points. How many more times will Anita have to shop at the grocery store in order to earn the additional points needed for a free prize? Give the equation and solution.
60x + 480 = 2,580
x = 35
- w + 23 = 24
w = -1
-y/2 + 14 = -1
y = 30
6x - 5 = 7x + 7 + x
x = -6
7 = p - 3/5 (10p - 5)
p = -4/5
Stephanie bought a package of pencils for $1.75 and some erasers for $0.25 each. She paid a total of $4.25 for everything, before taxes. Exactly how many erasers did Stephanie buy? Give an equation and solution.
0.25x + 1.75 = 4.25
x = 10