Math Review

One- Step

100

m-9=-13

m=-4

200

15+b=23

b=8

300

-15+n=-9

n=6

400

18+m=8

m=-10

500

m-9=-26

m=-17

One- Step

100

v/8=2

v=16

200

-126=14k

k=-9

300

-17x=-204

x=12

400

10n=80

n=8

500

16=k/11

k=176

Two-Step Equations

100

156=6+10y

y=15

200

-13=b/3-10

b=-9

300

-2+p/7=-4

p=-14

400

2a+6=20

a=7

500

-9v - 2 = 25

v=-3

Isolate the Variable

100

v = \frac{d}{t}

Solve  d

d = vt

200

d = rt

Solve   r

r = \frac{d}{t}

300

C = 2\pi r

Solve   r

r = \frac{C}{2\pi}

400

A = \frac{1}{2}bh

Solve  h

h=\frac{2A}{b}

500

y = mx + b

Solve  x

x = \frac{y - b}{m}

Two- Step Equations

100

6x  + 8 = 50 

x=7

200

2x - 5 = 11

x=8

300

13 = -4x + 9

x=-1

400

x/2-7=9

x=32

500

11=x/-5+8

x=-15

Isolate the Variable (Physics)

100

F = ma

Solve. m

m = \frac{F}{a}

200

F = kx

Solve  k

k = \frac{F}{x}

300

\rho = \frac{m}{V}

Solve  v

V = \frac{m}{\rho}

400

KE = \frac{1}{2}mv^2

Solve  v

v = \sqrt{\frac{2 KE}{m}}

500

F = G\frac{m_1 m_2}{r^2}

Solve  m_1

m_1 = \frac{F r^2}{G m_2}