Unit 2 Equations

Solving Proportions

100

2/x=8/9

9/4 or 2.25

200

(x+1)/5=3/5

x=2

300

(x-3)/7=8/4

x=17

400

(5x+10)/x=10/11

x=-22/9 or -2.4444

500

There is a mandatory 4 cows to every 3 horses ratio on a ranches in Kansas. If Mrs. Haase has 18 horses, how many cows does she have? 

c=24 cows

Vocabulary

100

What is 4x+3 an example of?

Expression

200

What is the coefficient 4x+5?

4

300

What is the constant of -12x-8?

-8

400

What property is 2(x-3) => 2x-6 an example of? 

Distributive Property

500

y=2x+8 is an example of what?

Literal Equation/ Formula/ Multivariable Equation

Solving for Y

100

4y+3=7

y=1

200

-2(y+3)=14

y=-10

300

-4(-8y-1)=-4-8y

y=-1/5 or -0.20

400

-6y+12=-3(2y-8)

No Solution (0=12)

500

ax+by=c

y=(c-ax)/b

Simplify

100

2x+3+x-8

3x-5

200

2x+5-8(x-1)

-6x+13

300

2 (3^2-4)-6

4

400

8-16÷4(2)+3

3

500

(4-2)^2÷4

1

Wildwest

100

3(x+4)=21

x=3

200

4x−7=2x+9

x=8

300

5(x−2)+3=2x+14

x=7

400

3(2x−5)−4x=17

x=16

500

4(2x−3)+5=3(x+7)−2x

x=4