Answer:
[tex]\displaystyle y = -1\frac{2}{3}x -7[/tex]
Step-by-step explanation:
−5x - 3y = 21
+ 5x + 5x
__________
[tex]\displaystyle \frac{-3y}{-3} = \frac{5x + 21}{-3} \\ \\ y = -1\frac{2}{3}x - 7[/tex]
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