termanology
add/subract
multiply/divide
2-step equations
word problems
100
an unknown number.
a variable
100
5=a=13
a=8
100
5/10=y
y=.5
100
3+7-x=5
x=5
100
Paula has 10 chocolate cakes. Aniko takes a number of cakes and Kayla takes 2 and Paula has 2 cakes left. How many cakes did Aniko take?
Aniko took 6 of Paulas cakes.
200
what is a number that is added or subtracted to a variable?
a constant
200
p=15+4
p=19
200
15/y=5
y=3
200
13-3+y= 20
y=10
200
aniko has 37 dresses. Seaira borrows a number of dresses. Aniko has 15 dresses left. how many dresses did Seaira take?
seaira borrowed 23 dresses from Aniko.
300
what is the number that goes before a variable?
a coeafficent
300
y-38=50
y=88
300
30/x=6
x=6
300
42+5-y= 22
y=15
300
Emily had 300 soccer balls. paula borrowed 18 of them, seaira borrowed 30 for her soccer team, kayla borrowed 82and another 30 for her comunity soccer and aniko borrowed a number of soccer balls because she wanted to. emily has 135 soccer balls left. how many did aniko take?
aniko took 5 soccer balls from emily.
400
How do you isolate the variable?
if the variable has more than 1 variable in the otherside of the equels sign, we have to get rid of the number.we do this by doing the opposite opperation to both sides of the equels sign. ex: x+7=10 -7 -7 x = 3
400
x=56+3
x= 59
400
y/16=32
y=512
400
32+y-8=25
y=1
500
how do you get rid of the add/subract?
start with the number farthest from the variable. ex. 2c+7=5 -7 -7 2c=-2 /2 /2 c=-1
500
300+y=5000
y=4700
500
550/x=
x=22
500
1538=50y+38
y=30
500
Kayla has 2000 cats. Aniko stole 560 of Kayla's cats, Paula stole 180 of her cats and Harry stole a number of cats. how many did harry take if kayla had 60 cats left?
Harry stole 1200 cats.
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