A first number plus twice a second number is 14, Twice the first number plus the second totals 37. How do you find the numbers?
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1 Answer
Dec 8, 2016
x=20, y=-3
Explanation:
Let first number be 'x' and second number be 'y'. Then,
x+2y=14 and 2x+y=37. To solve this system of equations multiplythe first equation by 2 and subtract the second equation from it, eliminating x
2x+4y-(2x+y)= 28-37
Now using the first equation, it would be x-6=14 #-> x=20
