Pre-Calc/Chapter 7: Systems and Matrices/7.1 Solving Systems of Two Equations/Solve Linear System by Elimination Solve the system by elimination. 3x + 4y = 31 6x = 29 - 8y Solve the system by elimination.

 3x + 4y = 31
 6x = 29 - 8y]]> 1.0000000 0.3333333 0 true true abc (3, 5) Incorrect No solution Correct (9, 1) Incorrect (9, 5) Incorrect Solve the system by elimination. 9x - 7y = 72-6x + 4y = -48 Solve the system by elimination.

 9x - 7y = 72
-6x + 4y = -48]]> 1.0000000 0.3333333 0 true true abc (8, 0) Correct (8, 1) Incorrect No solution Incorrect (7, 1) Incorrect Solve the system by elimination. x - 3y = -10 6x - 4y = -18 Solve the system by elimination.

 x - 3y = -10
 6x - 4y = -18]]> 1.0000000 0.3333333 0 true true abc (-2, 4) Incorrect No solution Incorrect (1, 4) Incorrect (-1, 3) Correct Solve the system by elimination.-4x - 7y = -17 2x - 3y = -11 Solve the system by elimination.

-4x - 7y = -17
 2x - 3y = -11]]> 1.0000000 0.3333333 0 true true abc (-2, 4) Incorrect (-1, 4) Incorrect No solution Incorrect (-1, 3) Correct