Vocabulary
What does the 7 stand for in 7x?
The constant
5n+9n
14n
2(x+3)
2x+6
x-6=-5
x=1
r+11+8r=29
r=2
What does the x stand for in 7x?
The variable
7p-10p
-3p
3(2x-5)
6x-15
v-15=-27
v=-12
m=2
3(x-2) How do I get rid of the parentheses?
-2(7-n)+4
-10+2n
-2(-x-15)
2x+30
14b=-56
b=-4
30=-5(6n+6)
n=-2
What are the following terms? 5x, 7x, 3x
Like terms
10x+36-38x-47
-11-28x
3-(2x-3)
-2x
-9x+1=-80
x=9
-13=5(1+4m)-2m
m=-1
What is the difference between an expression and equation?
An equation has an equal sign
4-5(-4n+3)
-20n-11
-10(-6x+3)
60x-30
10-6v=-104
v=19
8(4x-4)=-5x-32
x=0