Solving Literal Equations and Formulas

Solve for the indicated variable.

• A = l/w

• w = l/A

• w = A

• w = A/l

Solving the formula P = 2L + 2W for W is not equivalent to which equation?

• (P-2L)/2 = W

• (P/2) - (2L/2) = W

• (1/2)P - L = W

• P - (1/2)L = W

Solve the equation for w.  
^{x = w / a}

• w = a / x

• w = x / a

• w = ax

• x = wa

Solve for x. 
5y = x / 8w

• x = 40yw

• x = 85wy

• x = 5y - 8w

• x = 5y / 8w

Solve for n:
2m - n = 8

• n = 2m - 8

• n = -2m - 8

• n = 2m + 8

• n = -2m + 8

Which expression represents the value of e in the equation:

• e = (f + e)/d

• e = (f - x)/d

• e = d/(x - f)

• e = f-dx

Solve for b

y = mx + b

• y - mx = b

• y + mx = b

• y / mx = b

• ym / x = b

• T = PV/K
• T = PK/V
• T=KV/P
• Greenland

Solving for a variable means:

Getting a variable ______________

• to cancel

• equal to a number

• by itself

• to simplify

Solve for y:
2x + 2y = 6

• y = - x + 3

• y = x + 3

• y = 2x +6

• y = - 2x + 6