Practice 4 Rearrange each formula to solve for the specified variable. Assume no variable is equal to 0. a. A = P(1 + rt) i. Solve for P. ii. Solve for t. b. K = $mv2 i. Solve for m. ii. Solve for v. Lesson Summary The properties and reasoning used to solve equations apply regardless of how many variables appear in an equation or formula. Rearranging formulas to solve for a specific variable can be useful when solving applied problems. Exit Ticket First solve the related equation, then use the same process to solve the equation with more than one variable. Related Equation Equation Containing More Than One Variable Solve for x : 3x +4 = 6-5x Solve for x : ax + b = d- cx Solve for x : 2 + =3 Solve for x : + =e