Mathematics
Mathematics, 21.10.2021 14:00, ayowazzzgood

‼️PLEASE HELP I HAVE NO IDEA ON HOW TO DO THIS AND I DONT HAVE MUCH TIME TO DO IT‼️‼️ Solve each system by elimination. Please show the work.

1. 3x+3y+6z=9; 2x+y+3z=7; x+2y-z=-10

2. 3x-y+z=3; x+y+2z=4; x+2y+z=4

3. x-2y+3z=12; 2x-y-2z=5; 2x+2y-z=4

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