The document contains instructions on rewriting equations and formulas with multiple variables. It provides two examples of rewriting equations to solve for y by combining like terms. It also lists four formulas and asks to solve each for the indicated variable, which are t, T, H, and an unspecified variable.

1. Objective - To rewrite equations and formulas with more than one variable. 2 x - 5 y = 8 - 2 x - 2 x - 5 y = - 2 x + 8 - 5 - 5 Solve for y .

2. -7 x - 2 y = -12 +7 x +7 x - 2 y = 7 x - 12 - 2 - 2 Solve for y . Find the value of y when x = 4.

3. Solve the formula for the variable indicated.

4. (1 + rt) Solve the formula for the variable indicated. T = H + Hrt ; H T = H(1 + rt) (1 + rt )

5. Solve the formula for the variable indicated.

6. Solve the formula for the variable indicated.