Q:
# What Does Solving Formulas for the Indicated Variable Involve?

**In math, chemistry and physics, solving for indicated variables in different formulas involves having to manipulate the formula equation until it is in the desired form.** An example of this is the area formula for a triangle given as A = 1/2 (b x h), where a student needs to solve this formula in terms of the variable "h" that represents height.

Solving for the variable "h" gives the new equation h = 2A/b, where b is the base and A is the area. Similarly, students can be asked to solve for indicated variables in physics and chemistry formulas, such as V = I x R and P1 x V1 = P2 x V2.

Ohm's Law is given as V = I x R, where V equals volts, I represents current and R is resistance. A simple calculation students may need to do is to solve for the variable I in this formula. Solving for I or current, the equation should be manipulated to give the answer as I = V/R.

In chemistry, Boyle's Law is given by the formula P1 X V1 =P2 X V2, where P1 and P2 represent pressure and V1 and V2 indicate volume. Using this formula often requires students to solve for the different indicated variables like P1 or V2. For example, solving for V1 , the answer is V1 = (P2 x V2)/P1.

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