Bob-o's World of Equations
 
 
Basic Equation
 
 
1.5(4x-3)=2[x-(4x+3)] Original Problem
6x-4.5=2[x-4x-3] Distributive Property
6x-4.5=2x-8x-6 Combining Like Terms
6x-4.5=-6x-6 After Subtraction of 2x-8x
6x-4.5+6=-6x-6+6 Addition of 6 To Each Side
6x+1.5-6x=-6x-6x Subtraction of 6x
1.5/-12=-12x/-12 Division by -12
-1/8=x THE ANSWER !!!!!
 
 
 
 
A Special Website You Might Want ToVisit
Ms. Felz's Website
 
 
 
 
Literal Equation
Area of a Trapezoid
Solve for b2
 
 
A = (b1+b2)h/2 Original Problem
(2)A = (b1+b2)h/2(2) Multiplication by 2
2A/h = (b1+b2)h/h Division by h
2A/h - b1 = (b1+b2) - b1 Subtraction of b1
2A/h - b1 = b2 THE ANSWER!!!!!
 
Another Special Website You Can Visit
My School's Website
 
 
 
Equation of a Line
in Three Forms
Given Information:  Line contains (-2,4) and a
Y-Intercept of 8
Finding the Slope...
    8-4             4
    0-(-2)          2
 
 
Slope Intercept
y = 2x+8 Your answer.  Use given and slope
 
Point/Slope
(y-4) = 2(x+2) Your answer.  Use given and slope
 
 
 
Standard Form
y = 2x+8 Slope/Intercept Equation
y-2x = 2x+8-2x Subtraction of 2x
-1 (y-2x) = (8) -1 Multiplication by -1
2x-y = -8 The Answer!!!!!!!!
 
 
 
 
 
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