Manipulating Formulas for a Variable

Solve for y:
8x + 4y= 16

• y = -8x + 16

• y = 2x -4

• y = -2x + 4

• y = -8x + 12

Solve for the indicated variable.

• I = V/R

• I = R/V

• I = RV

• I = VR

Solve for the indicated variable.

• A = l/w

• w = l/A

• w = A

• w = A/l

pV = nRT
solve for R

• R= pV/nT

• R= p/n + V/T

• R= pV - nT

• R= (pV-n)/T

Solve m - n = 5 for m.

• m = 5 + n

• m = -5 - n

• m = -5 + n

• m = 5 - n

Solve for x:

6(2x + 1) = 18

• 3

• 17/12

• 1

• 2

Solve for w.

• F

• G

• H

• I

solve for r

• r=7/ax

• r=7-ax

• r=7+ax

• r=7ax

Which expression represents the value of x in the equation:
dx + e = f

• x = (f + e)/d

• x = (f - e)/d

• x = d/(e - f)

• x = d/(e + f)

Solve for x:

ax - b = cx + d

• x = (a-c)/(b+d)

• x = (b+d)/(a-c)

• x = (b+d)/(a+c)

• x = (a+c)/(b-d)