Solving Multi-variable (literal) equations

A-B = C
(solve for A) 

• A = C - B
• A = C + B
• A - C = B
• B = A - C

IR = V
(solve for R) 

• R = IV
• R = I/V
• R = V/I
• R = V - I

Solve for t.
D= rt

• D/r = t
• Dr = t
• D/t = r
• Dt = r

Solve the formula for y. What is the 1st step?

• Subtract B from each side.

• Divide each side by Ax.

• Divide each side by B.

• Subtract Ax from each side.

ax + c = R
(solve for x) 

• ax = R + c
• ax = R - c
• x = a(R-c)
• x = (R-c) / a 

Solve for y:
5x - y = 16

• -y = 5x + 16
• y = 5x + 16
• x = 5y - 16
• y = 5x - 16