2m + n = 2
3m - 2n = 3

m = 1   n = 0

Step-by-step explanation:

(2m + n = 2)2              You need to cancel out one of the variable, so I chose n

3m - 2n = 3

3m - 2n = 3            

4m + 2n = 4              Add the two equations together

7m = 7                       Divide both sides by 7

m = 1

Plug 1 in for m into one equation

2(1) + n = 2

2 + n = 2        

-2       -2                     Subtract 2 from both sides

n = 0

Check this with the other equation to make sure it is the same answer

3(1) -2n = 3

3 - 2n = 3

-3        - 3                    Subtract 3 from both sides

-2n = 0                        Divide both sides by -2

n = 0                          

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: