4 = -8 + x
x= 12
Solving Equations
4x + 3 = 7
x = 1
Solving Equations
5n - 2 = 8n - 14
n = 4
Solve: I=Prt for t
I/pr = t
|5x-7|+9=3
No Solution
No Solution
x + 12 = 0
x= -12
Solving Equations
4(6 + 5x) = 124
x = 5
Solving Equations
-4(-8p + 1) = -4 - 8p
p = 0
Solve Ax + By = C for y
y= C-Ax/B
|8m-8| = 40
m = {-4, 6}
Identity
3 = -2 – x
x= -5
Solving Equations
-108 = -8(x + 6) - 4
x = 7
Solving Equations
6(6n - 2) = 8n - 40
n = -1
(4/3)(p-q)=r
Solve for p
3/4 r + q = p
-5|4p+4| = -40
p = {-3, 1}
The lesser of two consecutive even integers is 5 more than half the greater integer.
What are the integers?
12 and 14
5x = -80
x= 16
Solving Equations
172 = 5(4a + 6) + 2
a=7
Solving Equations
5x + 5 + 4x = 4 - 3x + 6
x= 5/12 or x= 0.41667
Solve for y
y=p/(3b-7)
2|g-5|+7 = 13
g = {2, 8}
2 Parts
It takes a plane 4 hours and 15 minutes to fly 1114 miles.
a) What is the planes speed. Round to 1 decimal place
b) If 1 mile = 1.6km. What is the planes speed in km/hour? Round to 1 decimal place.
a) 262.1 miles per hour
b) 419.4 km/hour
16 = x/2
x= 32
Solving Equations
-93 = 7(-3k - 8) + 5
k = 2
Solving Equations
-5(8n - 4) - n = - 16 - 5n
n = 1
What are literal equations?
Equations with multiple variables.
|3x+2|=|3x+10|
x=-2
Is that enough fabric to cover a cube that has sides of 18inches?
Yes.