Simple Equations
Multi-Step Equations
Solving Equations
Rewriting Literal Equations
100

x+3=-6

x=-9

100

3x+11=5

x=-2

100

12/x=9/3

x=4

100

Solve for y.

2x-4y=20

y=1/2x-5

200

-x/5=-2

x=10

200

x/8-5=-3

x=16

200

6/15=4/(m+3)

m=7

200

Solve for y.

8x-3=5+4y

y=2x-2

300

7x=63

x=9

300

x+5x+7=43

x=6

300

3/8=x/(x+2)

x=6/5

300

Solve for y.

3(2x+y)=-4x-y

y=-5/2x

400

x-11=30

x=41

400

-4(2x+6)=16

x=-5

400

5(1+x)=5x+5

All real numbers

400

Solve for y.

a=9y+3yx

y=a/(9+3x)

500

12/x=4

x=3

500

10-3(x+1)=22

x=-5

500

3(n+4)=1/2(6n+4)

No solutions

500

You have a savings account with $25 in it and your friend has a savings account with $50 in it. You deposit $10 each week and your friend deposits $5 each week. Your friend claims it will take 5 weeks for you to have the same amount of money in your accounts. Is your friend correct? Explain your answer.

25+10x=50+5x

25+10(5)=50+5(5)

75=75

Our friend is correct. We choose good people.

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