Equations
6*7=38+___
4
2 X 2 = ___ +1
3
A letter or symbol used to represent a number
a variable
Write the full rule of:
6, 19, 32, 45, ___, ___, ___
Start with 6, then add 13 each time.
What is the difference between a numerical and algebraic expression?
Numerical doesn't have any variables, and algebraic has variables in the expression.
y = 7x What is y when x = 9?
63
3+2 = __ +1
4
Write: 7 less than x
x-7
True or False?
52 + (5+8) -23= 15
True
What does "evaluate" mean?
To solve
y = 6x + 19 What is y when x= 4?
43
True or False?
7*4 +1 = 100-71
True
29=29
Write: The product of 5 and v
5v or 5*v
Marty puts $10 in his piggy bank and then adds $4 each week. Write an equation.
What is M= 4w + 10
Distribute
5* (x+7)
5x + 35
Solve for b:
4.5b=18
b=4
7 - 3 = 2 + ____
2
Write: 75 put into x equal groups
75 / x
The temperature rises 25 degrees per hour. Write an equation.
What is T= 25h
Who is M.Johnsons Bestie
Korte
4.7 + v= 13.9
v=9.2
Solve: x=9
x2*9=y
Write: a number squared, separated by 17
X2 divided by 17
Distribute to solve
8 x 79
(8x70) + (8x9)
560+72
=632
What year was Ms. Johnson born?
2000