Question 814339
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Hi,
Let x represent the larger number and y represent the smaller number.
The sum of the two numbers is 0
x + y = 0
Twice the smaller number subtracted from 3 times the larger number is 10. 
 3x - 2y = 10   | x + y = 0  0r   x = -y
 3(-y) - 2y = 10
     -5y = 10
       y = -2 the smaller number  and x = 2
CHECKING our Answer***
{{{ 3*2 - 2(-2) = 10}}}