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Alexis Levine
Mathematics
15 August, 16:52
How do I solve for 7y-4x=42 x=5y+9
+5
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Gage Melendez
15 August, 16:59
0
x=-21 y=-6
Step-by-step explanation:
7y-4 (5y+9) = 42
7y-20y-36=42
-13y=78
y=-6
x=5 * (-6) + 9
x=-30+9
x=-21
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