One Step Equations and Inequalities
P - 3 = -4
p = 1
−2c + 6 = −8
c = 7
3x + 4 > 16
x > 4
Write the word sentence as an equation. Th en solve the equation.
5 more than a number x is −4.
5 + x = -4
x = -9
Who has taken more math classes, Ms. G or Mr. Thomas?
Mr. Thomas
x + 12 = -10
-22
−3x − 4.6 = 5.9
x = -3.5
−2t − 5 < 9
t > -7
Write and solve an inequality that represents the additional numbers of people that can board the ship.
- A small cruise ship can hold up to 500 people. There are 115 crew members on board the ship.
x + 115 <= 500
x <= 385
Does Mr. Thomas ski or snowboard?
ski
-6x = -24
4
3(w − 4) = −18
w = -2
z /-2 − 6 ≤ −2
x >= -8
Th e floor of a canyon has an elevation of −14.5 feet. Erosion causes the elevation to change by −1.5 feet per year. How many years will it take for the canyon floor to reach an elevation of −31 feet?
Write and solve the equation
-14.5 - 1.5x = -31
11 years
What is Ms. G and Mr. Thomas' combined age?
48
x/-5 = 20
-100
w / 6 + 5 / 8 = − 1 3 / 8
w = -12
7(q + 2) < −77
q < -13
Your goal is to raise at least $50 in a charity fundraiser. You earn $3.50 for each candle sold. You also receive a $15 donation. Write and solve an inequality that represents the numbers of candles you must sell to reach your goal.
Write and solve an inequality that represents this problem.
10 candles
What are the names of Ms. G's dogs?
Poppy and Onyx