One-Step Equations
Solving Equations
Solve for x.
2x = 8
What is:
x = 4
Solving Equations
Solve for x.
4x + 3 = 7
What is:
x = 1
Solving Inequalities
Solve for c.
c - 11 > 22
What is:
c > 33
Simplify -3(x - 4)
-3x + 12
For the phrase "at least", we use this inequality symbol
What is
"greater than or equal to"
Solve the equation
X + 4 = -88
What is:
X = -92
Solving Equations
Solve for x.
-9x + 1 = -71
What is:
x = 8
Solve the inequality
-2x <- 4
X > 2
-4x - 10 + 2x - 5
-2x - 15
For the phrase "At most" we use this inequality symbol
What is
"Less than or equal to"
solve the equation
z/30 = 70
z = 2,100
-44 = 2(y - 3)
-19 = y
or y = -19
Solve:
6x - 8 + 2x < 8
What is
x < 2
Are these expressions equivalent?
9(x - 6). and 4x + 54 + 5x
No
9x - 54 is not the same as 9x + 54
True or False: We use a closed circle to represent the inequalities < and > ?
What is:
False
solve the equation
-4x = 14
What is:
x = -3.5
Write an equation to match the situation:
Your family goes to a Phantoms game. They pay $5 to park in the parking garage and pay for 4 tickets. Each ticket costs the same. They spend 45. Which equation can be used to determine the cost of each ticket?
4t + 5 = 45. or 5t + 4 = 45
4t + 5 = 45
A mechanic charges $20 per hour plus $80 to work on your car. The mechanic worked on the car for less than $160. Let h represent the number of hours.
Write an inequality that can be used to represent the situation.
20h + 80 < 160
Which expression is equivalent to -2(y - 4) - 5y
7y - 8 or -7y + 8
-7y + 8
-6x + 3 + 2x < 10
no because 11 is not less than 10
Solve the Equation:
f - 9 = -58
What is:
f = -49
Modeling Equations
Create an equation that represents the following expression and THEN SOLVE IT.
Harvey's age doubled is 6
2a = 6
a = 3
Henry is 3 years old.
Write an inequality to represent the scenario and solve the inequality
Julie earns $7 for each car she washes. This week, she wants to save more than $56. How many cars must she wash?
What is:
7c > 56
Are these expressions equivalent?
-8h - 2.5 and -0.5(16h + 5)
YES
Write an inequality
S is at most 55
s <= 55