Literal Equations

Solve

100

d=rt solve for t 

t=d/r

200

Solve a=46c for c 

c=a/46

300

The formula A=P+I shows that the total amount of money A received from an investment equals the principal P (the original amount of money invested) plus the interest I. Solve this formula for I.

I = A - P

400

The formula C = 2*pi*r relates the circumference C of a circle to its radius r. Solve for r.

r = C/(2*pi) 

500

The formula for a person's typing speed is s = w-10em  Solve for w

w = s + 10em 

Solving I

100

Solve m - n = 5 for m

m = 5 + n

200

Solve x/5 - g = a for x

x = 5(a + g)

300

Solve 2a + 2b = c for b

b = c - 2a/2

400

Solve 3.3x + r = 23.1 for x

x = 23.1 - r/3.3

500

Solve s = (1/2)gt² for g

g = 2s/t²

Solving II

100

Solve m/k = x for k

k = m/x

200

Solve y = mx + b for x

x = y - b/m

300

Solve ax + r = 7 for r

r = 7 - ax

400

Solve x/n = m/p for x

x = mn/p

500

Solve v² = u² + 2as for s

s = v² - u²/2a

Solving III

100

Solve 5 - b = 2t for t

t = 5-b/2

200

Solve PV = nRT for T

T = PV/nR

300

Solve 4y + 3x = 5 for x

x = 5 - 4y/3

400

Solve 6x + 14y = 5 for x

x = 5-14y/6

500

Solve S = ht for t

t = s/h

Solving IV

100

Solve D = m/V for V

V = m/D

200

Solve M = T - R for T

T = M + R

300

Solve 9 + 3x = 2y for x

(Simplify)

x = 2/3y - 3

400

Solve t = d/500 + 1/2 for d

d = 500t - 250

500

Solve y = mx + b for m. 

m = y - b/x