Solve the system by s ubstit ution. -5y=x 3x+9y=24 Answer Attempt 1 out of 2 (square ,square )

To solve the system by substitution, we can start by solving the first equation:<br /><br />$-5y = x$<br /><br />Then we substitute this expression for x into the second equation:<br /><br />$3(-5y) + 9y = 24$<br /><br />Simplifying, we get:<br /><br />$-15y + 9y = 24$<br /><br />$-6y = 24$<br /><br />Dividing both sides by -6, we find:<br /><br />$y = -4$<br /><br />Now we can substitute this value of y back into the first equation to find x:<br /><br />$x = -5(-4)$<br /><br />$x = 20$<br /><br />Therefore, the solution to the system is $(20, -4)$.