1. 9х-7у=95 9x=7y+95 9x-7y-95=0 9x 95 y= ___ - ___ 7 7 x=7n+2, y=9n-11, n ∈ Z 1 y= ___(9x-95) 7 2. 4х+у=34 y=34-4x 4x+y=34=0 y=-2( 2x-17)