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?
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
Now using the first equation, it would be x-6=14 #-> x=20