## Algebra: A Combined Approach (4th Edition)

3x + 2y = 11 first equation 5x - 2y = 29 second equation ___________________ 8x = 40 add the equations to eleminate y x = 5 divide both sides by 8 let x = 5 in first equation $3\times5$ + 2y = 11 15 + 2y = 11 2y = 11 - 15 2y = -4 y = -2