exam Maths Puzzle Numerical Ability

solve each system:

2x- y+3z=-14
3x-2y+4z=11
5x+ y-6z=-32


i am very confused on how to solve this...please help!

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exam Other Question

Can someone help me on this problem:

I need to place the following set of numbers in ascending order:

-2, 8, 0, 2, -3, -20, 11

Thank you,
Lyn
translate and solve

when twice a number is subtracted from twenty-four, the result is six times the number. find the number