Ответ:
6x+3x+42+16=0
9x+58=0
9x=-58
x=-58/9
5x+3y+37-12=0
3y+5x=-25
5x=-25-3y
x=-5-3/5y
4x+7y+27=0
4x=-7y-27
x=-7/4y-27/4
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Ответ:
6x+3x+42+16=0
9x+58=0
9x=-58
x=-58/9
5x+3y+37-12=0
3y+5x=-25
5x=-25-3y
x=-5-3/5y
4x+7y+27=0
4x=-7y-27
x=-7/4y-27/4