Question

The sum of three numbers is 10. Two times the second number minus the first number is equal to 12

The first number minus the second number plus twice the third number equals 7. Find the numbers.
Listed in order from smallest to largest, the numbers are
and
DONE

Answer 1

-2, 5, 7

Explanation:

Please use Algebra expressions as below:

Let x, y and z be the first, second and third number respectively. So, the following will be the expressions:

x+y+z = 10

2y-x = 12

x-y+2z = 7