Question

Solving linear equations

Answer 1

Answer:

1. P = $\frac{I}{rt}$

2.  y = $\frac{6 - 3x}{11}$ or $\frac{-3x +6}{11}$         (depending on how you want the equation arranged)

3. c = $\frac{a-bd}{b}$

4 t = $\frac{A - p }{pr}$

Step-by-step explanation:

1. I =Prt for P:

I = Prt                           divide both sides by rt to isolate P

P = $\frac{I}{rt}$

2. 3x + 11y = 6 for y

   3x + 11y = 6                  subtract 3x from both sides

   11y = 6 - 3x                   divide both sides by 11

   y = $\frac{6 - 3x}{11}$ or $\frac{-3x +6}{11}$         depending on how you want the equation arranged

3. a = b(c + d) for c

   a = b(c + d)                distribute b to (c+d)

   a = bc + bd                subtract bd from both sides

   a - bd = bc                 divide both sides by b

   c = $\frac{a-bd}{b}$

4. A = p + prt for t

   A = p + prt                   subtract p from both sides

   A - p = prt                    divide both sides by pr

   t = $\frac{A - p }{pr}$