2-1 SOLVING EQUATIONS FOR VARIABLES (Pages 44-47) Solve each equation for y in terms of the other variables. Brayden Indicate any restrictions on the values of the variables. Example: ay - (a - 3) = d Solution: ay - (a - 3) = d ay - a + 3 = d ay - a = d - 3 ay = d - 3+ a y = d - 3+2 a+0 a 1 . 4 - 3y = 8m - 4 - 3 9 - 8m -4 2. 2y - 3b =5y - 9 y = 3 - 6 3 3 3. 5by - a = b(b + 2y) 4. c( y + 6 ) = 62 - ab 5 . 7 + y (b + 1 ) = c 6. V= =by + 100 7. yla - 4) - b =a2 8. A = pr2 + 2qry The formula F = = C + 32 relates the temperature in Fahrenheit degrees, F, to the temperature in Celsius degrees, C. C= 25 9. Solve the formula for C. 5 x 5/ 9 C - 77-32 + 5 / 9 10. Find C when F = 770. The formula A = prt + p relates the total amount (principal plus interest) A, to the principal, p, the annual interest rate, r, and the number of years, t. 11. Solve the formula for r. 12. Find r when A = $3150, p = $2500, and t = 2 years. HBJ material copyrighted under notice EQUATIONS AND INEQUAL appearing earlier in this work. W- 9