1 and 2 step equations
what are the steps to solving the equation 4x+15= -13?
9m=(-13-14)
m=(-13-14) divided by 9
m=
whats another word for constant?
variable
can an inequality have 2 variables?
yes, they can have 1 or 2
whats the difference between an equation and an expression?
expression never have an equal sign while equations do
What's a constant?
specific number or symbol that its job is to be a fixed value
x/1.5=16
x=6(15)
13r+5r+2n=?
What is 2n+18r
key words for solving inequalities?
equals, greater than, less than, is not equal to, greater than or equal, less than or equals
what parts of an equation is in the equation?
2 expressions connected by an equals sign
What's a coefficient?
the number in front of a variable in a term
steps to solve a 1 step equation?
isolate the variable by using the inverse or opposite operations
what is an expression?
it's a mathematical phrase that can contain numbers, variables, and operators
where can you put inequalties?
graph, number line, dot plot, table, equation
in the problem 5x+8y+2 which variables are the coefficients?
the numbers in front of the letters, 5 and 8
how to make terms like terms?
in order for both terms to be like terms, they must have both a variable and the same exponet
steps to solve a 2 step equation?
1st: + or - to remove the constant
2nd: x or divide to remove the coefficient
-1.2k+3.9-g+.5g+7+.3k=?
-.5g-.9k+10.9
14 < 5p - (-9)=?
(1 < p)
steps to solve the equation 4(x-2)=12
4(x-2)=12
4x-8=12
+8 +8
4x=12
divide both by 4
x=5
What's an inequality?
compares 2 values, showing if one is less than, greater than, or not equal to another
how to solve a 2-step equation if there is a fraction?
if dividing my a fraction multiply by the reciprocal
1/2b-9+4b-0.2b=?
7.5b-2
-2r + 1 > 5=?
(r > -2)
what's the difference between an equation and an inequality?
an equation states that 2 expressions are equal while an inequality relates 2 different values
whats the distributive property?
the product of a sum or difference of a number is equal to the sum or difference of the products