Vocab
Provide an example of a constant
1 or 4 or 100
A number by itself
-5+8=
3
x+5=17
x=12
-3x-3=18
x=-7
Solve with distribution;
6(2+3)
30
What is the coefficient in 3a?
3
A number in front of a variable that indicates multiplication.
-8 - 4=
-12
x-3=-10
x=-7
x/2-10=20
x=15
Solve with distribution, show your work.
8(5-2)=
24
What is an example of a variable?
A or x or B etc.
A letter that represents an unknow number
-2 - (-9)=
7
-2x=18
x=-9
-14+2x=18
x=16
Solve with distribution, show your work.
6(3a+2)=
18a+12
Are these LIKE TERMS?
2a and a???
Yes!!!
-5(10)=
-50
x/3=-8
x=-24
x+6/3=12
x=30
Solve with distribution, show your work.
4(10a-6)
40-24
What is the difference between an expression and equation?
Equations have equal signs and expressions do not.
-30/-6
5
How can we check this problem?
x/3=-8
Show your work on the board
Show how to check x/2-10=20
Show your work on the board
Solve with distribution, show your work.
(a+22)-=
-a+(-22)