Equations

Writing Equation

100

Alex is x years old,but in thirteen years he'll be twenty-four years old.How old is Alex now?

Alex will be eleven years old.

200

Maria made a with-drawl of e dollars from her savings account,her old balance was $350 and her new balance is $280.How much money did Maria with-drawl from her savings account?

Maria made a withdrawal of 630 dollars from her savings account.

300

Laura bought a large pizza with 15 slices and shared with p cousins even though each cousin shared 3 slices each.How many cousins does Laura has?

Laura has 5 cousins.

400

Each piece of chocolate bar cost 25 cents.The price of her pieces of chocolate bar is $2.00.How many pieces of chocolate bars are their?

There are 12.5 pieces of chocolate bars.

Simplifying Equations

100

5x+x-3

6x-3

200

2w(5wy)

10w²y

300

x²-2x-3

(x-3)(x+1)

400

5x+x-3

6x-3

One-Step Equations

100

k+22=29

k=7

200

p-18=3

p=21

300

z-15=5

z=10

400

y+6=52

y=46

Two-Step Equations

100

3x+2=14

x=4

200

8=a/3+6

a=6

300

3x-2=16

x=6

400

x/4+2=5

x=12

Multiple-Step Equations

100

7x+3=2x+13

x=2

200

13x-9x+20=30+2

x=3

300

6y-10y-11=8y-2y+29

y=-4

400

-12m+4m-5-9=8m-13m+15-8

m=-7