1.1 - Simple Eqs
1.2 - Multistep Eqs
1.3 - Eqs w Variables on Both Sides
1.4 - Algebraic Proportions
1.5 - Rewriting Eq & Formulas
100
3y=18
y=6
100
4x-8=48
x=14
100
y-12=4y
y=-4
100
15/20=3/k
k=4
100
G. Divide both sides of the formula by V.
200
-14=x-12
x=-2
200
1/4(y-20)=12
y=68
200
6n-12=3(2n-4)
infinite solutions
200
6/(y+1)=4/8
y=11
200
Solve for t.
I=prt
t=I/(pr)
300
4/5t=-12
t=-15
300
3(5-9b)+11=-244
b=10
300
16(p-2)=7p+4
p=4
300
25/(p-16)=9/p
p=-9
300
Solve for a.
s=n(a+1)
s/n=a+1
s/n-1=a
400
Find the missing angle.
x=46
400
Sum of interior angles is 360 degrees. Find the value of x.
x=43
400
10m-3(2m-9)=9(m-1)+1
10m-6m+27=9m-9+1
4m+27=9m-8
27=5m-8
35=5m
m=7
400
3/(q+9)=4/(2q+6)
q=9
400
Solve for h.
V=1/3pir^2h
h=(3V)/(pir^2)
500
3/4+z=5/6
z=1/12
500
For the past three months, Grace used her cell phone for 43 minutes, 62 minutes, and 57 minutes. How many minutes would she have to use her cell phone this month for the average usage over the four months to be 55 minutes?
58 minutes
500
One movie club charges a $100 membership fee and $10 for each movie. Another club charges no membership fee but movies cost $15 each. Write and solve an equation to find the number of movies you need to buy for the cost of each movie club to be the same.
x=movies
100+10x=15x
100=5x
x=20 movies
500
6/(2n-5)=2/(n-7)
n=16
500
Solve for x.
1/3(2x-y)=z
x=(3z+y)/2