6x – 13 = 11
x= 4
Solving Equations
4x + 3 = 7
x = 1
Solving Equations
3a + 6 = 2a
Give an example of inverse operations
Add/Subtract OR Multiply/Divide
Solving Inequalities
Solve for c.
c - 11 > 22
What is:
c > 33
3x + 5 = 14
x= 3
Solving Equations
4 + 5x = 29
x = 5
8x + 6 = 4x - 10
x=-4
When you multiply or divide both sides by a negative number, you must flip the sign.
Solve the inequality
-2x <- 4
X > 2
x/2 + 13 =-8
x= -42
Solving Equations
-45 = x + 4
x = -7
2(x+2)-4=2x
2x=2x identity, all numbers
"At least" is for this inequality symbol
"greater than or equal to"
Write an inequality
S is at most 55
s <= 55
x/2 + 5 =10
x= 10
Solving Equations
14 = (3a + 6) + 2
a=2
5+3y=3(2+y)
5=6, null set, no solution
How many solutions do inequalities have?
Infinitely many
-4g-5 >= -17
g <= 3
x/3 - 6 = -3
x= 9
Solving Equations
-21 = 7(5k - 8)
k = 1
Brady buys five T-shirts on salve for $4 off the regular price. His total cost is $55 before tax. Write and solve an equation to find the regular price of each T-shirt.
5(t-4)=55 ; $15
When solving something like 3(x -2) = 12
what step do you do first?
Expand the brackets
4(x-3) > 6
x > 4.5