# Hard SAT Math Question 13 — Video Explanation | 1600.now

Source: https://1600.now/hard/13

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13

The equation given is one of two equations in a system of linear equations. The system has no solution. Which equation could be the second equation for this system?  
$-21 = 65y + 13x$

A

$65y = 13x$

B

$25y = -5x + 12$

C

$13y = -65x$

D

$25y = -65x + 13$