Vocabulary
a letter that represents an unknown number
variable
Solve for x.
9-11x=64
-5
How many terms does the expression below have?
x-5+3x+1
4
To simplify an expression(with no parenthesis) you need to ____________.
combine like terms
Name the 3 Rigid Transformations.
Reflection, Rotation, Reflection
a mathematical statement that uses an equal sign to show that two expressions have the same value
equation
Solve for x.
x/4+10=70
240
What are the like terms in the expression.
1/2x+3x-2/3-x
1/2 , 3 , -1
The first step in solving a 2-step equation is to _____________ (3 words).
move the constant
When parallel lines are cut by a transversal, what are the 4 congruent angle relationships?
Vertical angles, corresponding angles, alternate interior angles, and alternate exterior angles.
a group of numbers, variables, and/or operation symbols that represents a mathematical relationship
expression
Solve for x.
-(x-4)=-13x
-1/3
Lists the coefficients of the terms in the expression.
-x+4x-5(3x+2)
-1, 4, -15
When the variable is on both sides, my first step is to ________________.
move variable and make positive
For what value of x will this relationship be proportional?
3/x=81/54
2
a number, a variable, or a product of numbers, variables, and/or expressions
term
Solve the equation.
2(3x-7)=3(-4x-3) +5
5/9
Simplify the expression.
-(-5+8x)+3x
5-5x
If I get a statement that says x=5 then my equation will have _______________(2 words).
one solution
How many solutions does this equation have?
2(3x-4)=6x+8
none
multiplying each term in a sum or difference by a common factor
Distributive Property
Is this solved correctly? If not, where is the mistake in solving this equation and what is the correct answer?
4(-x+6)+5x=10x-1
4x+24+5x=10x-1
9x+24=10x-1
24=x-1
25=x
4x instead of -4x so combining like terms was wrong and
25/9
Simplify the expression.
10(-3x-5)+2x-6
-28x-56
If my 2-step equation involves adding a constant, I need to do _______________ (2 words) and subtract the constant from both sides.
inverse operations
If a point is at (5,-1) and it is dilated by a scale factor of 3/2 , what are the coordinates of the image?
(15/2,-3/2)