Ch 6 Sec 5: Slide #1 Columbus State Community College Chapter 6 Section 5 Formula Rearrangement

Ch 6 Sec 5: Slide #2 Formula Rearrangement 1.Solve a formula for a specified variable.

Ch 6 Sec 5: Slide #3 Solving Equations and Formula Rearrangement Solve each of the following for x. 2x – 4 = 16kx – r = m ; solve for x 2x = 20 kx = m + r 2 k x = r m + r k x =

Ch 6 Sec 5: Slide #4 Solving for a Specified Variable EXAMPLE 1 Solving for a Specified Variable Solve A = BCD for B. A = BCD ABCD = CD Divide by CD. A B= CD

Ch 6 Sec 5: Slide #5 Solving for a Specified Variable EXAMPLE 2 Solving for a Specified Variable Solve y = m x + b for m. y = m x + b Subtract b. – b y – b = m x y – bm x = xx Divide by x. y – b m = x

Ch 6 Sec 5: Slide #6 Solving for a Specified Variable EXAMPLE 3 Solving for a Specified Variable Solve y = b h for b. 1 2 y = b h 1 2 = b h2y2y Multiply by 2. 2y = b h 2y2yb h = hh Divide by h. 2y2y b = h

Ch 6 Sec 5: Slide #7 Formula Rearrangement Chapter 6 Section 5 – Completed Written by John T. Wallace