Question 856522
The equations are:

Let x- be the number
    y- be another number

(1)  2x-y=-1
(2)  2y+3x=9

(1)  2x-y=-1
     -y=-1-2x
     y=1+2x
(2)  2y+3x=9
     2(1+2x)+3x=9
     2+4x+3x=9
     7x=7   Therefore,
     {{{x=1}}}
     y=1+2x
     y=1+2(1)
     {{{y=3}}}

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