Elevate week 3 REVIEW

Multi-Step Equations

100

Solving Equations

4x + 3 = 7

x = 1

200

Solving Equations

4(6 + 5x) = 124

x = 5

300

Solving Equations

-108 = -8(x + 6) - 4

x = 7

400

Solving Equations

172 = 5(4a + 6) + 2

a=7

500

Solving Equations

-93 = 7(-3k - 8) + 5

k = 2

Multi-Step Equations w/ Variables on Both Sides

100

Solving Equations

5n - 2 = 8n - 14

n = 4

200

Solving Equations

-4(-8p + 1) = -4 - 8p

p = 0

300

Solving Equations

6(6n - 2) = 8n - 40

n = -1

400

Solving Equations

5x + 5 + 4x = 4 - 3x + 6

x= 5/12    or    x= 0.41667

500

Solving Equations

-5(8n - 4) - n = - 16 - 5n

n = 1

Two- step equations

100

9x-7=-7

x=0

200

-243=-9(10+x)

x=17

300

144=-12(x+5)

x=-17

400

-10=-10+7m

m=0

500

7(9+k)=84

k=3

Vocab

100

What is a variable 

A letter that represents an unkown number

200

What is a constant 

A number by itself 

300

What is a coefficient 

The number attached to the varibale or the number in front of the variable 

400

What are terms

a single number, a single variable, or numbers and variables multiplied together. 

things seperated by an operation 

500

What is the difference between an expression and an equation

An expression does not have an equal sign, it cannot be solved, only simplified 

An equation can be solved for a single anwer. 

One-Step Equations

100

4 = -8 + x

x= 12

200

x + 12 = 0

x= -12

300

3 = -2 – x

x= -5

400

5x = -80

x= 16

500

16 = x/2

x= 32