The system of equations is 5x+4y=75 and x+y=18.
The first number is 3 and the second number is 15.
Step-by-step explanation:
Two numbers are x and y.
According to given statement;
5x+4y=75 Eqn 1
x+y=18 Eqn 2
Multiplying Eqn 2 by 5
Subtracting Eqn 1 from Eqn 3
Putting y=15 in Eqn 2
The system of equations is 5x+4y=75 and x+y=18.
The first number is 3 and the second number is 15.
Keywords: linear equation, elimination method
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