Two or more terms that have the same variable part (or would use the same tile)
What are like terms?
3x2+5x2
What is 8x2?
x - 3 = 4x + 3
What is -2?
The slope for the equation
y=-2x+5
What is -2?
-(2x+4)
What is
-2x-4
To shorten an expression as much as possible, with each type of term shown only once
What is simplify?
4xy-8xy+xy
What is -3xy?
3x - 9 = 10
What is 19/3?
The starting point (y-intercept) of the equation
y=x-3
What is -3?
4(2x-1)
What is
8x-4
In the expression 4x2, it is the 2
What is an exponent?
4y2-5y+2y-y2
What is 3y2-3y?
3x - 7 + x = 5
What is x=3?
The equation of this graph
What is
y=-x+4
-3(x+2)
What is
-3x-6
In the expression 4x2, it is the 4
What is a coefficient?
2x-5+8x+x2-1+x2-2x2
-2x + 7 + 3x = 1 - 7x
What is x = -3/4 ?
The slope of 
What is -2/3 ?
3x-(4+7x)
What is
-4x-4
-3x3 and 3x3
What is a zero pair?
x(x) - 4x2+4x3 - x(x2)
What is 3x3-3x2?
(x+2)/3=9
What is x = 25?
The equation of the line shown

What is x=3 ?
2(x-5)-4(x+2)
What is
-2x-18