115-6*X=73 (4900/Y-280)/60=7

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вопрос

Let's solve each equation separately:

115 - 6X = 73
Subtract 115 from both sides:
-6X = -42
Divide both sides by -6:
X = 7

(4900/Y - 280) / 60 = 7
Multiply both sides by 60:
4900/Y - 280 = 420
Add 280 to both sides:
4900/Y = 700
Divide both sides by 4900:
Y = 7

Therefore, the solution to the system of equations is X = 7 and Y = 7.