Review multi-step equations

Challenge?

100

Solve 1.3c=-65

c=-50

200

Solve 1/9a=-108

a=-972

300

Rashid picked a total of 420 strawberries in 5/6 hours. Write an equation to find how many strawberries Rashid could pick in 1 hour

5/6x=420

400

1.1-t+2.2t=5.9

t=4

500

Kaleigh has $25. She plans to save $7.50 each week. Write an equation to find how many weeks she needs to save to get $250. Find the number of weeks.

25+7.50w=250

Vocabulary

100

A _____ is an unknown amount/quantity or value.

A variable is an unknown amount/quantity or value.

200

___ ___ have the same variable or no variable

like terms have the same variable or no variable

300

_____ means to put together; add.

What is combine?

400

a rule in math that is the first step to follow when solving multi-step equations

The Distributive Property is a rule in math that is the first step to follow when solving multi-step equations

500

What are the different terms in an expression or equation?

Variables, Coefficients, and Constants

1-2 step equations

100

-7m = 63

-7m = 63 m=-9

200

56/n=-8

n=-7

300

-2k-4=8

k=-6

400

h/-3 + 6 = -4

h=30

500

h-9/5=-10

h=-8 1/5

combining like terms

100

6m – 5m + 1

m+1

200

-6x(4-5)

-24x+30x=6x

300

9-3d(6+9)

9-18d-27d= 9-45d

400

-4(-5f-3) +11 - 2f

-4(-5f-3) +11 - 2f 20f+12+11-2f 18f+23

500

g-4m+2(m-3)+6-2g

-g-2m

3 to multi-step equations

100

3m-1=m+5

3m-1=m+5 2m=6 m=3

200

-5-3x=2x+10

x=-3

300

4n-40=7(-2n+2)

4n-40=7(-2n+2) n=3

400

38+7k=8(k+4)

k=6

500

4(-8m+5)=-32m-26

4(-8m+5)=-32m-26 no solution