Simply Expressions
Simpify
3(x+5)
What is:
3x + 15
Solving Equations
Solve for x.
4x + 3 = 7
What is:
x = 1
Solving Inequalities
Solve for n:
165 > -7(4n-4)-3
What is:
n> -5
Is the statement true or false?
2X > 6
X > 3
True
What is the first step in solving both equations AND inequalities?
DISTRIBUTE (get rid of parentheses)
Simpify
-2(4x-3)
What is:
-8x + 6
Solving Equations
Solve for x.
2x - 5 = - 11
What is:
x = -3
Solve the inequality
n+3 - 2n > 5 + n - 1 + 3
n <-2
Is the statement true or false?
-2K + 30 = -10
K = -40
False
Solve for g:
g/2 - 100 = 500
g = 1200
Simpify
5a + 2b - 3a + 4b
what is
2a + 6b
Solving Equations
Solve for x.
-9x + 1 = -71
What is:
x = 8
Write an inequality
S is at most 55
s <= 55
We use a closed circle to represent the inequalities < and > ?
False
What is the most important rule when solving for equations and inequalities?
its the GOLDEN RULE!!
What you do to one side you must do to the other!
Simpify
4(x+2) - 3x
What is:
1x + 8
Solve for v.
v/3 + 14 = 30
v = 48
Write an Inequality
J is less than 8
J < 8
Inequalities only have one solution, just like equations.
False. Inequalities have infinitely many solutions.
Solve the inequality and graph it on a number line.
-5( x + 1) < 30
x > -7
Simpify
6(2x - 1) + 3(x + 4)
What is:
15x + 6
A Rectange has a perimeter of 100 inches. If the length of the rectangle is 3x and the width is 2x. What is the value of X? (A RECTANGLE HAS 4 SIDES)
Perimeter of a rectangle = L +W + L + W
3x + 2x + 3x+ 2x = 100
10x = 100
x = 10
Modeling and Solving Inequalities
Create 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
Given c + 4 > -14
We use the inverse operation of addition (subtraction) to solve the inequality and our answer is c > 10
False; c > -18
How do you spell Coach E last name??
Escalante