solve the system by the elimination method. (enter your answers as a comma-separated list. if the system is inconsistent, enter inconsistent. if the system is dependent, enter dependent.)

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x + 2y = 13
3x + 4y = 31

solve the system by the elimination method. (enter your answers as a comma-separated list. if the system is inconsistent, enter inconsistent. if the system is dependent, enter dependent.)

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2x + 5y = 40
2x + 3y = 32

carry out the row operation on the matrix.

r1 − r2 → r1 on

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8 7 59
2 4 51
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interpret the augmented matrix as the solution of a system of equations. (enter your answers as a comma-separated list. if the system is inconsistent, enter inconsistent. if the system is dependent, enter dependent.)

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1 0 9
0 1 −3
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