Expressions
9 + 23 is an example of this type of an expression.....
numerical expression
This makes the difference between an expression and an equation
equal sign, (=)
get the variable by itself
How do we solve one-step equations
the inverse operation
3x - 5 is an example of what type of expression
algebraic expression
This is an example of what type of equation:
3y + 2 = 23
algebraic equation
Solve:
p + 16 = 94
p = 78
Solve:
9j = 27
j = 3
Write as a numerical or algebraic expression:
five more than 3 times a number
Many possible solutions:
3n + 5
5+ 3n
(3 x 5) + 5
5 + (3 x 5)
This is an example of what type of equation:
213 - 34 + 16 = 195
Numerical Equation
t - 32 = 51
t = 83
Solve:
k/8 = 24
k = 192
Write a word phrase for the following:
y/6-3
the quotient of a number and 6, take away 3
a number divided by 6, minus 3
Write a word phrase for the following equation:
y - 14 = 31
Answers my vary.
y minus 14 is 31
14 less than y equals 31
y take away 14 is 31
Solve:
j - ( -3) = - 8
j = -11
Solve:
-5m = 125
m = - 25
Solve: y = 36, m= 6, n=3
y/m -n
3
Write a word phrase for the following equation:
6r + 3 = 21
Answers may vary:
the product of 6 and a number plus 3
3 more than six times a number
six times r, plus 3
Solve:
h + (-5) = - 4
h = 1
Solve:
-y/6 = -21
y = 126