Vocabulary
Symbol that represents one or more numbers
Varible
write a word phrase for w-3
3 less than w
2x + 8 +4x - 5
6x + 3
13+n = 44
31
5n-18=-33
-3
Terms that have the same variable factors.
like terms
the quotient of p and 5
p/5
6 + 7.2y - 4.2y +1
3y + 7
q-16=40
56
5p-2=18
4
what property states that if a=b then a*c=b*c
multiplication property of equality
which operation would you use to increase a number by 10
addition
6(y+2) - 6 +5y
11y + 6
9c=-90
c=-10
s/8+4=13
72
a mathematical phrase with at least one variable
algebraic expression
write a word phrase for the expression 1.3 * p
one and three tenths times a number
2/3(6+3x) - 7x
4-5x
r/8=12.6
100.8
a skating rink rents skates at $3.95 for the first hour plus $1.25 for each additional hour when you returned your skates you paid $7.70 how many additional hours did you keep the skates?
3.95+1.25h =7.70 h=3 hours
a numerical factor of a term with a variable
coefficient
your job pays 7 dollars an hour write an algebraic expression for working h hours
7h
14 +2r +5(2r-1)
12r + 9
-7n=-294
42
how does solving a two step equation differ from a one step equation
two step equations combine two mathematical operations when solving two step equations you can usually undo addition or subtraction first then multiplication and division