4х+3у=-5
4х+3*0=-5
4х+0=-5
4х=-5
4p-2g=-26
4р=-26+2g
p=-13/2+1/2g
p=-13/2+1/2g, g є R
7x+3у=-11
7х+3у+11=-11+11
7х+3у+11=0
3р+4g=19
3р=19-4g
p=19/3-4/3g
p=19/3-4/3g, g є R
4х+3у=-5
4х+3*0=-5
4х+0=-5
4х=-5
4p-2g=-26
4р=-26+2g
p=-13/2+1/2g
p=-13/2+1/2g, g є R
7x+3у=-11
7х+3у+11=-11+11
7х+3у+11=0
3р+4g=19
3р=19-4g
p=19/3-4/3g
p=19/3-4/3g, g є R