Question

The sum of two numbers, x and y is 14. Twice the first number x and triple the second number y is 63. Find x and y.

Answer 1

x = -21, y = 35.

Explanation:

Use the elimination method:

x + y = 14

2x + 3y = 63

Multiply the first equation by -2:

-2x - 2y = -28

Add this to the second equation to eliminate x:

y = 35

So x + 35 = 14

x = 14 - 35

x = -21.